Function cbm_install_subagent_reminder_script

src/cli/cli.c:2182–2224

#define CMM_SUBAGENT_REMINDER_SCRIPT "cbm-subagent-reminder"

static void cbm_install_subagent_reminder_script(const char *home) {
    if (!home) {
        return;
    }
    char config_dir[CLI_BUF_1K];
    cbm_claude_config_dir(home, config_dir, sizeof(config_dir));
    if (!config_dir[0]) {
        return;
    }
    char hooks_dir[CLI_BUF_1K];
    snprintf(hooks_dir, sizeof(hooks_dir), "%s/hooks", config_dir);
    cbm_mkdir_p(hooks_dir, CLI_OCTAL_PERM);

    char script_path[CLI_BUF_1K];
    snprintf(script_path, sizeof(script_path), "%s/" CMM_SUBAGENT_REMINDER_SCRIPT, hooks_dir);

    FILE *f = fopen(script_path, "w");
    if (!f) {
        return;
    }
    /* The additionalContext value is a single line with no embedded quotes,
     * backslashes, or newlines, so the JSON below is valid as written — no
     * runtime escaping (and no python3/jq dependency) is required. */
    (void)fprintf(f,
                  "#!/usr/bin/env bash\n"
                  "# SubagentStart hook: tell subagents to use codebase-memory-mcp tools.\n"
                  "# Installed by codebase-memory-mcp. Fires when any subagent is spawned.\n"
                  "# SubagentStart injects context via JSON additionalContext, not plain stdout.\n"
                  "cat << 'REMINDER'\n"
                  "{\"hookSpecificOutput\":{\"hookEventName\":\"SubagentStart\","
                  "\"additionalContext\":\"Code discovery: prefer codebase-memory-mcp tools "
                  "(search_graph, trace_path, get_code_snippet, query_graph, get_architecture, "
                  "search_code) over grep/file-read for navigating code. Use Grep/Glob/Read for "
                  "text, configs, and non-code files.\"}}\n"
                  "REMINDER\n");
#ifndef _WIN32
    fchmod(fileno(f), CLI_OCTAL_PERM);
#endif
    (void)fclose(f);
#ifdef _WIN32
    chmod(script_path, CLI_OCTAL_PERM);
#endif
}

int cbm_upsert_claude_subagent_hooks(const char *settings_path) {
    char command[CLI_BUF_1K];