Function agent_dsml_parse

ds4_agent.c:1438–1514

Parse as much of the accumulated DSML buffer as possible. The parser can be * called after every streamed byte: incomplete input leaves state unchanged * until enough bytes arrive, while malformed completed input switches to * AGENT_DSML_ERROR so the model gets a retryable tool error. */

static char *agent_dsml41_tools_prompt(const char *source);

static char *agent_build_tools_prompt(ds4_engine *engine, bool edit_upto) {
    if (agent_tool_syntax_for_engine(engine) == AGENT_TOOL_SYNTAX_QWEN)
        return agent_build_qwen_tools_prompt(edit_upto, ds4_engine_has_vision(engine));
    if (agent_tool_syntax_for_engine(engine) == AGENT_TOOL_SYNTAX_GLM)
        return agent_build_glm_tools_prompt(edit_upto, ds4_engine_has_vision(engine));
    char *prompt = agent_build_dsml_tools_prompt(edit_upto, ds4_engine_has_vision(engine));
    if (ds4_engine_is_deepseek41(engine)) {
        char *next = agent_dsml41_tools_prompt(prompt);
        free(prompt);
        prompt = next;
    }
    return prompt;
}

static const char agent_dsml_syntax_reminder[] =
    "DSML syntax reminder:\n"
    "<｜DSML｜tool_calls>\n"
    "<｜DSML｜invoke name=\"$TOOL_NAME\">\n"
    "<｜DSML｜parameter name=\"$PARAMETER_NAME\" string=\"true|false\">$PARAMETER_VALUE</｜DSML｜parameter>\n"
    "</｜DSML｜invoke>\n"
    "</｜DSML｜tool_calls>\n";

static const char agent_glm_syntax_reminder[] =
    "GLM tool-call syntax reminder:\n"
    "<tool_call>$TOOL_NAME<arg_key>$PARAMETER_NAME</arg_key>"
    "<arg_value>$PARAMETER_VALUE</arg_value></tool_call>\n";

static const char agent_dsml41_syntax_reminder[] =
    "DSML syntax reminder:\n"
    "<｜DSML｜ calls>\n"
    "<｜DSML｜ invoke name=\"$TOOL_NAME\">\n"
    "<｜DSML｜ parameter name=\"$PARAMETER_NAME\" string=\"true|false\">$PARAMETER_VALUE</｜DSML｜ parameter>\n"
    "</｜DSML｜ invoke>\n"
    "</｜DSML｜ calls>\n";
static const char agent_qwen_syntax_reminder[] =
    "Tool-call syntax reminder:\n"
    "<tool_call>\n<function=$TOOL_NAME>\n<parameter=$PARAMETER_NAME>\n$PARAMETER_VALUE\n</parameter>\n"
    "</function>\n</tool_call>\n";

#define AGENT_SYSTEM_PROMPT_REMINDER_TOKENS 50000

static const char agent_hints_prompt[] =
    "The user enabled programming hints. Occasionally explain a useful concept "
    "behind the current work: a design choice, failure mechanism, trade-off, "
    "or way to verify correctness. Base each hint on code or results you have "
    "actually examined. Write one or two sentences as a normal Markdown "
    "blockquote starting with > **Hint:**. Hints are prose, not tool calls. "
    "Put them after the relevant discovery, including between tool calls. "
    "Prefer no hint to routine narration, repetition, or generic advice. "
    "Do not invent personal experience or a learner profile. Keep working "
    "without waiting for an answer. Later system notes may enable or disable "
    "hints; follow the latest setting.\n";

static bool agent_parse_hints(const char *arg, bool *enabled) {
    if (!strcmp(arg, "on")) *enabled = true;
    else if (!strcmp(arg, "off")) *enabled = false;
    else return false;