Function cbm_install_skills

src/cli/cli.c:1441–1494

/* ── Skill management ─────────────────────────────────────────── */

int cbm_install_skills(const char *skills_dir, bool force, bool dry_run) {
    if (!skills_dir) {
        return 0;
    }
    int count = 0;

    /* Clean up only empty old directories. Historical files may have been
     * customized, and their old content is not an ownership proof. */
    for (int i = 0; i < OLD_SKILL_COUNT; i++) {
        char old_path[CLI_BUF_1K];
        snprintf(old_path, sizeof(old_path), "%s/%s", skills_dir, old_skill_names[i]);
        (void)cbm_remove_empty_directory(old_path, dry_run);
    }

    for (int i = 0; i < CBM_SKILL_COUNT; i++) {
        char skill_path[CLI_BUF_1K];
        snprintf(skill_path, sizeof(skill_path), "%s/%s", skills_dir, skills[i].name);
        char file_path[CLI_BUF_1K];
        snprintf(file_path, sizeof(file_path), "%s/SKILL.md", skill_path);

        struct stat skill_state;
#ifndef _WIN32
        if (lstat(skill_path, &skill_state) == 0 && !S_ISDIR(skill_state.st_mode)) {
            continue;
        }
#else
        if (stat(skill_path, &skill_state) == 0 && !S_ISDIR(skill_state.st_mode)) {
            continue;
        }
#endif

        /* Check if already exists */
        if (!force) {
            struct stat st;
            if (stat(file_path, &st) == 0) {
                continue;
            }
        }

        if (dry_run) {
            count++;
            continue;
        }

        if (mkdirp(skill_path, DIR_PERMS) != 0) {
            continue;
        }

        if (cbm_text_write_owned_document(file_path, skills[i].content) == 0) {
            count++;
        }
    }
    return count;
}

int cbm_remove_skills(const char *skills_dir, bool dry_run) {
    if (!skills_dir) {