Function is_cmm_hook_entry

src/cli/cli.c:1823–1863

Check if a hook array entry is ours (current matcher or a known old one). * When require_command_substr is non-NULL, the matcher match is not sufficient: * the entry must ALSO carry a hooks[].command containing that substring. This * disambiguates our entry from a user's own hook that happens to share the same * matcher (notably "*", which a user is likely to pick for a catch-all hook), so *

 * upsert/remove never clobber a foreign entry. NULL preserves matcher-only
 * matching for callers whose matcher is already CMM-specific (e.g. "startup"). */
static bool is_cmm_hook_entry(yyjson_mut_val *entry, const char *matcher_str,
                              const char *const *old_matchers, const char *require_command_substr) {
    yyjson_mut_val *matcher = yyjson_mut_obj_get(entry, "matcher");
    if (!matcher || !yyjson_mut_is_str(matcher)) {
        return false;
    }
    const char *val = yyjson_mut_get_str(matcher);
    if (!val) {
        return false;
    }
    bool matcher_ok = strcmp(val, matcher_str) == 0;
    /* Also match old versions for backwards-compatible upgrade */
    for (int i = 0; !matcher_ok && old_matchers && old_matchers[i]; i++) {
        if (strcmp(val, old_matchers[i]) == 0) {
            matcher_ok = true;
        }
    }
    if (!matcher_ok) {
        return false;
    }
    if (require_command_substr) {
        yyjson_mut_val *hooks = yyjson_mut_obj_get(entry, "hooks");
        if (!hooks || !yyjson_mut_is_arr(hooks)) {
            return false;
        }
        size_t idx;
        size_t max;
        yyjson_mut_val *h;
        yyjson_mut_arr_foreach(hooks, idx, max, h) {
            yyjson_mut_val *cmd = yyjson_mut_obj_get(h, "command");
            if (cmd && yyjson_mut_is_str(cmd)) {
                const char *cs = yyjson_mut_get_str(cmd);
                if (cs && strstr(cs, require_command_substr)) {
                    return true;
                }
            }
        }
        return false;
    }
    return true;
}

/* Generic hook upsert for both Claude Code and Gemini CLI */