[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] where do we render the tool-call preamble?

[Tool]
ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);

[Assistant] It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>where do we render the tool-call preamble?<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">tool_calls_preamble</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result></tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">append_tools_prompt_text</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);
</tool_result><｜Assistant｜></think>It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] where do we render the tool-call preamble?

[Tool]
ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);

[Assistant] It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜><think>The constant likely appears more than once. Try a direct edit, fall back to line_number on failure.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜><think>Multiple matches. Use read_file then line_number-scoped edit.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜><think></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>where do we render the tool-call preamble?<｜Assistant｜><think>Try a tight pattern first; broaden if empty.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">tool_calls_preamble</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result></tool_result><｜Assistant｜><think>No hits. The actual symbol is append_tools_prompt_text.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">append_tools_prompt_text</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);
</tool_result><｜Assistant｜><think></think>It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.<｜end▁of▁sentence｜>


[System]
You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

[User] run the test suite

[Tool]
running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88

[Assistant] Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?

[User] investigate why ds4-server logs 'shutdown requested' mid-request

[Tool]
ds4_server.c:7297:        snprintf(err, sizeof(err), "shutdown requested");
ds4_server.c:8199:    server_log(DS4_LOG_DEFAULT, "ds4-server: shutdown requested, draining requests");

[Tool]
    if (g_stop_requested && strcmp(finish, "error") != 0) {
        finish = "error";
        snprintf(err, sizeof(err), "shutdown requested");
    }

[Tool] ds4_server.c:46:    g_stop_requested = 1;

[Tool]
static void stop_signal_handler(int sig) {
    (void)sig;
    if (g_stop_requested) _exit(130);
    g_stop_requested = 1;
    ...
}

[Assistant] g_stop_requested is set only by SIGINT/SIGTERM, so the mid-request 'shutdown requested' means the process received that signal. It is not raised by an internal timeout or by a client disconnect.

<｜begin▁of▁sentence｜>You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>run the test suite<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">make -s test</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">run the test suite</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">180</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88
</tool_result><｜Assistant｜></think>Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?<｜end▁of▁sentence｜><｜User｜>investigate why ds4-server logs 'shutdown requested' mid-request<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">shutdown requested</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:7297:        snprintf(err, sizeof(err), "shutdown requested");
ds4_server.c:8199:    server_log(DS4_LOG_DEFAULT, "ds4-server: shutdown requested, draining requests");
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">7290</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">20</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>    if (g_stop_requested && strcmp(finish, "error") != 0) {
        finish = "error";
        snprintf(err, sizeof(err), "shutdown requested");
    }
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">g_stop_requested\s*=</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:46:    g_stop_requested = 1;
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">43</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">10</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>static void stop_signal_handler(int sig) {
    (void)sig;
    if (g_stop_requested) _exit(130);
    g_stop_requested = 1;
    ...
}
</tool_result><｜Assistant｜></think>g_stop_requested is set only by SIGINT/SIGTERM, so the mid-request 'shutdown requested' means the process received that signal. It is not raised by an internal timeout or by a client disconnect.<｜end▁of▁sentence｜>


[System]
You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

[User] run the test suite

[Tool]
running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88

[Assistant] Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?

[User] investigate why ds4-server logs 'shutdown requested' mid-request

[Tool]
ds4_server.c:7297:        snprintf(err, sizeof(err), "shutdown requested");
ds4_server.c:8199:    server_log(DS4_LOG_DEFAULT, "ds4-server: shutdown requested, draining requests");

[Tool]
    if (g_stop_requested && strcmp(finish, "error") != 0) {
        finish = "error";
        snprintf(err, sizeof(err), "shutdown requested");
    }

[Tool] ds4_server.c:46:    g_stop_requested = 1;

[Tool]
static void stop_signal_handler(int sig) {
    (void)sig;
    if (g_stop_requested) _exit(130);
    g_stop_requested = 1;
    ...
}

[Assistant] g_stop_requested is set only by SIGINT/SIGTERM, so the mid-request 'shutdown requested' means the process received that signal. It is not raised by an internal timeout or by a client disconnect.

<｜begin▁of▁sentence｜>You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>run the test suite<｜Assistant｜><think>Run with low timeout so a hang does not stall the loop.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">make -s test</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">run the test suite</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">180</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88
</tool_result><｜Assistant｜><think></think>Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?<｜end▁of▁sentence｜><｜User｜>investigate why ds4-server logs 'shutdown requested' mid-request<｜Assistant｜><think>Find the only place that emits this string.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">shutdown requested</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:7297:        snprintf(err, sizeof(err), "shutdown requested");
ds4_server.c:8199:    server_log(DS4_LOG_DEFAULT, "ds4-server: shutdown requested, draining requests");
</tool_result><｜Assistant｜><think>Open the conditional that sets the error.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">7290</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">20</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>    if (g_stop_requested && strcmp(finish, "error") != 0) {
        finish = "error";
        snprintf(err, sizeof(err), "shutdown requested");
    }
</tool_result><｜Assistant｜><think>Find the writers of g_stop_requested.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">g_stop_requested\s*=</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:46:    g_stop_requested = 1;
</tool_result><｜Assistant｜><think>Confirm only the signal handler writes it.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">43</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">10</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>static void stop_signal_handler(int sig) {
    (void)sig;
    if (g_stop_requested) _exit(130);
    g_stop_requested = 1;
    ...
}
</tool_result><｜Assistant｜><think></think>g_stop_requested is set only by SIGINT/SIGTERM, so the mid-request 'shutdown requested' means the process received that signal. It is not raised by an internal timeout or by a client disconnect.<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] hello

[Assistant] Hello. What would you like to work on?

[User] fetch http://localhost/status and summarize

[Tool]
Server status

load=0.32 mem=78% temp=64C

home & docs

[Assistant] Server reports load 0.32, memory 78%, temperature 64C. The body is plain HTML with two links.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>hello<｜Assistant｜></think>Hello. What would you like to work on?<｜end▁of▁sentence｜><｜User｜>fetch http://localhost/status and summarize<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="web_fetch">
<｜DSML｜parameter name="url" string="true">http://localhost/status</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">20</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>

Server status

load=0.32 mem=78% temp=64C

home & docs

</tool_result><｜Assistant｜></think>Server reports load 0.32, memory 78%, temperature 64C. The body is plain HTML with two links.<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] hello

[Assistant] Hello. What would you like to work on?

[User] fetch http://localhost/status and summarize

[Tool]
Server status

load=0.32 mem=78% temp=64C

home & docs

[Assistant] Server reports load 0.32, memory 78%, temperature 64C. The body is plain HTML with two links.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>hello<｜Assistant｜><think></think>Hello. What would you like to work on?<｜end▁of▁sentence｜><｜User｜>fetch http://localhost/status and summarize<｜Assistant｜><think>Plain GET; no body needed.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="web_fetch">
<｜DSML｜parameter name="url" string="true">http://localhost/status</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">20</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>

Server status

load=0.32 mem=78% temp=64C

home & docs

</tool_result><｜Assistant｜><think></think>Server reports load 0.32, memory 78%, temperature 64C. The body is plain HTML with two links.<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] find functions named *_kv_*

[Tool] grep: bad regex: unbalanced parenthesis

[Tool]
ds4.c:88:static void ds4_kv_reset(...)
ds4.c:412:static int  ds4_kv_size(...)

[Assistant] Two candidates: ds4_kv_reset and ds4_kv_size, both in ds4.c. Want me to open either?

[User] hello

[Assistant] Hello. What would you like to work on?

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>find functions named *_kv_*<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">(_kv_</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>grep: bad regex: unbalanced parenthesis
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">_kv_</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4.c:88:static void ds4_kv_reset(...)
ds4.c:412:static int  ds4_kv_size(...)
</tool_result><｜Assistant｜></think>Two candidates: ds4_kv_reset and ds4_kv_size, both in ds4.c. Want me to open either?<｜end▁of▁sentence｜><｜User｜>hello<｜Assistant｜></think>Hello. What would you like to work on?<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] find functions named *_kv_*

[Tool] grep: bad regex: unbalanced parenthesis

[Tool]
ds4.c:88:static void ds4_kv_reset(...)
ds4.c:412:static int  ds4_kv_size(...)

[Assistant] Two candidates: ds4_kv_reset and ds4_kv_size, both in ds4.c. Want me to open either?

[User] hello

[Assistant] Hello. What would you like to work on?

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>find functions named *_kv_*<｜Assistant｜><think>First attempt with a regex that has an unbalanced group.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">(_kv_</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>grep: bad regex: unbalanced parenthesis
</tool_result><｜Assistant｜><think>Fix the regex.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">_kv_</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4.c:88:static void ds4_kv_reset(...)
ds4.c:412:static int  ds4_kv_size(...)
</tool_result><｜Assistant｜><think></think>Two candidates: ds4_kv_reset and ds4_kv_size, both in ds4.c. Want me to open either?<｜end▁of▁sentence｜><｜User｜>hello<｜Assistant｜><think></think>Hello. What would you like to work on?<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] elenca i file C principali

[Tool]
trovati 4 file:
  ds4.c
  ds4_server.c
  ds4_cli.c
  ds4_metal.m

[Assistant] I quattro file C principali sono ds4.c, ds4_server.c, ds4_cli.c e ds4_metal.m.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>elenca i file C principali<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">find . -maxdepth 1 -name '*.c' | sort</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">elenca i sorgenti C nella radice</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>trovati 4 file:
  ds4.c
  ds4_server.c
  ds4_cli.c
  ds4_metal.m
</tool_result><｜Assistant｜></think>I quattro file C principali sono ds4.c, ds4_server.c, ds4_cli.c e ds4_metal.m.<｜end▁of▁sentence｜>


[System]
You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] elenca i file C principali

[Tool]
trovati 4 file:
  ds4.c
  ds4_server.c
  ds4_cli.c
  ds4_metal.m

[Assistant] I quattro file C principali sono ds4.c, ds4_server.c, ds4_cli.c e ds4_metal.m.

<｜begin▁of▁sentence｜>You are Swival, a coding agent with a friendly, human-like personality. You solve tasks autonomously using the tools provided, taking the optimal decisions at every step. Keep going until the task is fully complete. Do not call tools for simple math, greetings, or unclear standalone questions. For minor ambiguity, pick the most likely intent and briefly state your choice.

## Workflow

- Use tools only when needed; answer plain questions directly.
- Explore before editing: outline, list_files, grep, then read_file.
- Use think before multi-step coding tasks, debugging, choosing alternatives, and editing code.
- Use todo for multi-step work and mark items done as you finish.
- One logical change at a time. Do not re-read files after editing.
- On tool errors, use think to diagnose before retrying.

## Editing

- Copy old_string verbatim from read_file.
- For multiple matches, pass line_number. Use replace_all only when every occurrence should change.

## Safety

- Never print secrets to the console.
- Do not take any action that could degrade the workspace.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜><think>The constant likely appears more than once. Try a direct edit, fall back to line_number on failure.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜><think>Multiple matches. Use read_file then line_number-scoped edit.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜><think></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>elenca i file C principali<｜Assistant｜><think>Uso un find limitato in profondità per restare conciso.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">find . -maxdepth 1 -name '*.c' | sort</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">elenca i sorgenti C nella radice</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>trovati 4 file:
  ds4.c
  ds4_server.c
  ds4_cli.c
  ds4_metal.m
</tool_result><｜Assistant｜><think></think>I quattro file C principali sono ds4.c, ds4_server.c, ds4_cli.c e ds4_metal.m.<｜end▁of▁sentence｜>


[System]
You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] tell me about ds4.c and ds4_server.c

[Tool] ds4.c first 60 lines elided ...

[Tool] ds4_server.c first 60 lines elided ...

[Assistant] ds4.c is the model graph runtime; ds4_server.c is the HTTP/chat layer that drives it.

<｜begin▁of▁sentence｜>You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>tell me about ds4.c and ds4_server.c<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">60</｜DSML｜parameter>
</｜DSML｜invoke>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">60</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4.c first 60 lines elided ...</tool_result><tool_result>ds4_server.c first 60 lines elided ...</tool_result><｜Assistant｜></think>ds4.c is the model graph runtime; ds4_server.c is the HTTP/chat layer that drives it.<｜end▁of▁sentence｜>


[System]
You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

[User] change the prefill chunk size from 2048 to 4096

[Tool]
edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)

[Tool]
1: #include "ds4.h"
2: #include "rax.h"
...

[Assistant] I need the actual line. Will re-scan with grep -n before editing.

[User] tell me about ds4.c and ds4_server.c

[Tool] ds4.c first 60 lines elided ...

[Tool] ds4_server.c first 60 lines elided ...

[Assistant] ds4.c is the model graph runtime; ds4_server.c is the HTTP/chat layer that drives it.

<｜begin▁of▁sentence｜>You are an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.

IMPORTANT: Refuse to write malicious code.
IMPORTANT: Before you begin work, think about what the code you are editing is supposed to do based on the filenames and directory structure.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>change the prefill chunk size from 2048 to 4096<｜Assistant｜><think>The constant likely appears more than once. Try a direct edit, fall back to line_number on failure.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="edit">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="old_string" string="true">prefill_chunk=2048</｜DSML｜parameter>
<｜DSML｜parameter name="new_string" string="true">prefill_chunk=4096</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>edit failed: old_string not found in path=ds4_server.c
(line_number not supplied; 3 candidate locations matched on partial)
</tool_result><｜Assistant｜><think>Multiple matches. Use read_file then line_number-scoped edit.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">40</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>1: #include "ds4.h"
2: #include "rax.h"
...</tool_result><｜Assistant｜><think></think>I need the actual line. Will re-scan with grep -n before editing.<｜end▁of▁sentence｜><｜User｜>tell me about ds4.c and ds4_server.c<｜Assistant｜><think>Both reads in one DSML block; the runtime handles ordered tool_calls.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">60</｜DSML｜parameter>
</｜DSML｜invoke>
<｜DSML｜invoke name="read_file">
<｜DSML｜parameter name="path" string="true">ds4_server.c</｜DSML｜parameter>
<｜DSML｜parameter name="start" string="false">1</｜DSML｜parameter>
<｜DSML｜parameter name="lines" string="false">60</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4.c first 60 lines elided ...</tool_result><tool_result>ds4_server.c first 60 lines elided ...</tool_result><｜Assistant｜><think></think>ds4.c is the model graph runtime; ds4_server.c is the HTTP/chat layer that drives it.<｜end▁of▁sentence｜>


[System] You are opencode, a terminal-based coding assistant. Resolve user tasks by inspecting the repository, planning a minimal change, and applying it. Use the bash, read, edit, and grep tools as needed.

[User] where do we render the tool-call preamble?

[Tool]
ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);

[Assistant] It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.

[User] run the test suite

[Tool]
running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88

[Assistant] Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?

<｜begin▁of▁sentence｜>You are opencode, a terminal-based coding assistant. Resolve user tasks by inspecting the repository, planning a minimal change, and applying it. Use the bash, read, edit, and grep tools as needed.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>where do we render the tool-call preamble?<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">tool_calls_preamble</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result></tool_result><｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">append_tools_prompt_text</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);
</tool_result><｜Assistant｜></think>It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.<｜end▁of▁sentence｜><｜User｜>run the test suite<｜Assistant｜></think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">make -s test</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">run the test suite</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">180</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88
</tool_result><｜Assistant｜></think>Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?<｜end▁of▁sentence｜>


[System] You are opencode, a terminal-based coding assistant. Resolve user tasks by inspecting the repository, planning a minimal change, and applying it. Use the bash, read, edit, and grep tools as needed.

[User] where do we render the tool-call preamble?

[Tool]
ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);

[Assistant] It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.

[User] run the test suite

[Tool]
running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88

[Assistant] Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?

<｜begin▁of▁sentence｜>You are opencode, a terminal-based coding assistant. Resolve user tasks by inspecting the repository, planning a minimal change, and applying it. Use the bash, read, edit, and grep tools as needed.

## Tools

You have access to a set of tools to help answer the user question. You can invoke tools by writing a "<｜DSML｜tool_calls>" block like the following:

<｜DSML｜tool_calls>
<｜DSML｜invoke name="$TOOL_NAME">
<｜DSML｜parameter name="$PARAMETER_NAME" string="true|false">$PARAMETER_VALUE</｜DSML｜parameter>
...
</｜DSML｜invoke>
<｜DSML｜invoke name="$TOOL_NAME2">
...
</｜DSML｜invoke>
</｜DSML｜tool_calls>

String parameters should be specified as raw text and set `string="true"`. Preserve characters such as `>`, `&`, and `&&` exactly; never replace normal string characters with XML or HTML entity escapes. Only if a string value itself contains the exact closing parameter tag `</｜DSML｜parameter>`, write that tag as `</｜DSML｜parameter>` inside the value. For all other types (numbers, booleans, arrays, objects), pass the value in JSON format and set `string="false"`.

If thinking_mode is enabled (triggered by <think>), you MUST output your complete reasoning inside <think>...</think> BEFORE any tool calls or final response.

Otherwise, output directly after </think> with tool calls or final response.

### Available Tool Schemas

{"name":"bash","description":"Run a shell command in the workspace.","parameters":{"type":"object","properties":{"command":{"type":"string","description":"The command line to execute."},"description":{"type":"string","description":"Short description of intent."},"timeout":{"type":"integer","description":"Timeout in seconds.","default":30}},"required":["command"]}}
{"name":"read_file","description":"Read a region of a file from the workspace.","parameters":{"type":"object","properties":{"path":{"type":"string"},"start":{"type":"integer","default":1},"lines":{"type":"integer","default":200}},"required":["path"]}}
{"name":"grep","description":"Search files for a regex pattern.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"path":{"type":"string","default":"."},"glob":{"type":"string","description":"Filename glob filter."},"ignore_case":{"type":"boolean","default":false}},"required":["pattern"]}}
{"name":"list_files","description":"List files matching a glob pattern, depth-limited.","parameters":{"type":"object","properties":{"pattern":{"type":"string"},"max_depth":{"type":"integer","default":3}},"required":["pattern"]}}
{"name":"edit","description":"Apply a small old/new text edit to a file.","parameters":{"type":"object","properties":{"path":{"type":"string"},"old_string":{"type":"string"},"new_string":{"type":"string"},"line_number":{"type":"integer","description":"Disambiguate when old_string occurs more than once."},"replace_all":{"type":"boolean","default":false}},"required":["path","old_string","new_string"]}}
{"name":"web_fetch","description":"Fetch a URL and return the body as text.","parameters":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"timeout":{"type":"integer","default":20},"headers":{"type":"object","additionalProperties":{"type":"string"}}},"required":["url"]}}

You MUST strictly follow the above defined tool name and parameter schemas to invoke tool calls. Use the exact parameter names from the schemas.<｜User｜>where do we render the tool-call preamble?<｜Assistant｜><think>Try a tight pattern first; broaden if empty.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">tool_calls_preamble</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result></tool_result><｜Assistant｜><think>No hits. The actual symbol is append_tools_prompt_text.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="grep">
<｜DSML｜parameter name="pattern" string="true">append_tools_prompt_text</｜DSML｜parameter>
<｜DSML｜parameter name="path" string="true">.</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>ds4_server.c:1646:static void append_tools_prompt_text(buf *b, const char *tool_schemas) {
ds4_server.c:1922:        append_tools_prompt_text(&system, tool_schemas);
</tool_result><｜Assistant｜><think></think>It is in ds4_server.c at line 1646, called from render_chat_prompt_text at 1922.<｜end▁of▁sentence｜><｜User｜>run the test suite<｜Assistant｜><think>Run with low timeout so a hang does not stall the loop.</think>

<｜DSML｜tool_calls>
<｜DSML｜invoke name="bash">
<｜DSML｜parameter name="command" string="true">make -s test</｜DSML｜parameter>
<｜DSML｜parameter name="description" string="true">run the test suite</｜DSML｜parameter>
<｜DSML｜parameter name="timeout" string="false">180</｜DSML｜parameter>
</｜DSML｜invoke>
</｜DSML｜tool_calls><｜end▁of▁sentence｜><｜User｜><tool_result>running 3 tests
test parse_chat_request ... ok
test render_chat_prompt_text ... ok
test dsml_decode ... FAILED

failures:
    dsml_decode: assertion failed at tests/dsml.c:88
</tool_result><｜Assistant｜><think></think>Two passes, one failure in dsml_decode at tests/dsml.c:88. Open the file?<｜end▁of▁sentence｜>