Skill Bundle Fabric

.DS_Store
dist/

MIT License

Copyright (c) 2026 Unbrowse

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

{
  "name": "skill-bundle-fabric",
  "private": true,
  "type": "module",
  "scripts": {
    "build": "node scripts/build-bundle.mjs --preset presets/unbrowse-workflows.json --out dist",
    "test": "node --test tests/*.test.mjs"
  }
}

{
  "bundle_id": "unbrowse-workflows",
  "title": "Unbrowse Workflow Bundle",
  "repo": "https://github.com/unbrowse-ai/unbrowse",
  "bootstrap_skill": "find-skills",
  "skills": [
    "history-skill-miner",
    "docs-release-sync",
    "skill-surface-ship",
    "main-actions-triage"
  ],
  "routes": [
    {
      "when": "the request is about turning repeated local workflows into skills",
      "call": "history-skill-miner"
    },
    {
      "when": "the request is about README, changelog, or release-note alignment",
      "call": "docs-release-sync"
    },
    {
      "when": "the request is about skill install, publish, packaging, or sync surface changes",
      "call": "skill-surface-ship"
    },
    {
      "when": "the request is about blockers or status on main CI or deploy runs",
      "call": "main-actions-triage"
    }
  ],
  "share": {
    "transport": "files",
    "manifest_path": "/.well-known/skill-bundles/unbrowse-workflows/share.json"
  },
  "index": {
    "slug": "unbrowse-workflows",
    "summary": "Develop, share, and route Unbrowse workflow skills as one portable bundle.",
    "tags": ["unbrowse", "skills", "workflow-bundle", "memory-routing"]
  }
}

#!/usr/bin/env node

import { mkdirSync, writeFileSync } from "node:fs";
import path from "node:path";
import {
  buildBundleManifest,
  buildHostTargets,
  buildRegistryEntry,
  buildShareManifest,
  parseArgs,
  readPreset,
  renderMemoryBlock,
  validatePreset,
} from "./lib.mjs";

function writeJson(filePath, value) {
  mkdirSync(path.dirname(filePath), { recursive: true });
  writeFileSync(filePath, JSON.stringify(value, null, 2) + "\n");
}

function main() {
  const flags = parseArgs(process.argv);
  const outRoot = path.resolve(String(flags.out || "dist"));
  const preset = validatePreset(readPreset(flags.preset));
  const bundleDir = path.join(outRoot, preset.bundle_id);

  writeJson(path.join(bundleDir, "bundle.json"), buildBundleManifest(preset));
  writeJson(path.join(bundleDir, "share.json"), buildShareManifest(preset));
  writeJson(path.join(bundleDir, "registry-entry.json"), buildRegistryEntry(preset));

  for (const target of buildHostTargets()) {
    const outputPath = path.join(bundleDir, target.snippet_path);
    mkdirSync(path.dirname(outputPath), { recursive: true });
    writeFileSync(outputPath, renderMemoryBlock(preset, target.host));
  }

  process.stdout.write(JSON.stringify({
    bundle_id: preset.bundle_id,
    output_dir: bundleDir,
    files: [
      "bundle.json",
      "share.json",
      "registry-entry.json",
      ...buildHostTargets().map((target) => target.snippet_path),
    ],
  }, null, 2) + "\n");
}

main();

import { existsSync, readFileSync } from "node:fs";
import os from "node:os";
import path from "node:path";

export const MARKER_BEGIN = "<!-- SKILL_BUNDLE_FABRIC:BEGIN -->";
export const MARKER_END = "<!-- SKILL_BUNDLE_FABRIC:END -->";
export const HOST_FILES = {
  codex: "AGENTS.md",
  claude: "CLAUDE.md",
  openclaw: "MEMORY.md",
};

export function parseArgs(argv) {
  const flags = {};
  for (let i = 2; i < argv.length; i += 1) {
    const arg = argv[i];
    if (!arg.startsWith("--")) continue;
    const key = arg.slice(2);
    const next = argv[i + 1];
    if (!next || next.startsWith("--")) {
      flags[key] = true;
      continue;
    }
    flags[key] = next;
    i += 1;
  }
  return flags;
}

export function resolveHome() {
  return process.env.HOME || os.homedir();
}

export function readPreset(presetPath) {
  if (!presetPath) throw new Error("--preset is required");
  return JSON.parse(readFileSync(path.resolve(presetPath), "utf8"));
}

export function validatePreset(preset) {
  const required = ["bundle_id", "title", "repo", "bootstrap_skill", "skills", "routes", "share", "index"];
  for (const key of required) {
    if (!(key in preset)) throw new Error(`Missing preset field: ${key}`);
  }
  if (!Array.isArray(preset.skills) || preset.skills.length === 0) throw new Error("skills[] required");
  if (!Array.isArray(preset.routes) || preset.routes.length === 0) throw new Error("routes[] required");
  if (!preset.share?.manifest_path) throw new Error("share.manifest_path required");
  if (!preset.index?.slug || !preset.index?.summary || !Array.isArray(preset.index?.tags)) {
    throw new Error("index.slug, index.summary, index.tags[] required");
  }
  for (const route of preset.routes) {
    if (!route.when || !route.call) throw new Error("each route needs when + call");
  }
  return preset;
}

export function installCommands(preset) {
  return preset.skills.map((skill) => `npx skills add ${preset.repo} --skill ${skill} --yes`);
}

export function buildHostTargets() {
  return [
    { host: "codex", target_path: "./AGENTS.md", snippet_path: "hosts/codex/AGENTS.md" },
    { host: "claude", target_path: "./CLAUDE.md", snippet_path: "hosts/claude/CLAUDE.md" },
    { host: "openclaw", target_path: "./MEMORY.md", snippet_path: "hosts/openclaw/MEMORY.md" },
  ];
}

export function renderMemoryBlock(preset, host) {
  const commands = installCommands(preset);
  const lines = [
    MARKER_BEGIN,
    `## ${preset.title} (${host})`,
    "",
    "Install from repo:",
    ...commands.map((command) => `- \`${command}\``),
    "",
    "Skill-call routing defaults:",
    ...preset.routes.map((route) => `- If ${route.when}, call \`${route.call}\`.`),
    "",
    `Use \`${preset.bootstrap_skill}\` first when available to confirm/install the right skill, then call that skill.`,
    MARKER_END,
    "",
  ];
  return lines.join("\n");
}

export function upsertManagedBlock(existing, block) {
  if (existing.includes(MARKER_BEGIN) && existing.includes(MARKER_END)) {
    return existing.replace(new RegExp(`${MARKER_BEGIN}[\\s\\S]*?${MARKER_END}\\n?`, "m"), block);
  }
  return `${existing.replace(/\s*$/, "")}${existing.trim().length > 0 ? "\n\n" : ""}${block}`;
}

export function targetFileFor(host, scope, cwd) {
  const home = resolveHome();
  const projectFiles = {
    codex: path.join(cwd, "AGENTS.md"),
    claude: path.join(cwd, "CLAUDE.md"),
    openclaw: path.join(cwd, "MEMORY.md"),
  };
  const agentFiles = {
    codex: path.join(home, ".codex", "AGENTS.md"),
    claude: path.join(home, ".claude", "CLAUDE.md"),
    openclaw: process.env.OPENCLAW_HOME ? path.join(process.env.OPENCLAW_HOME, "MEMORY.md") : null,
  };
  if (!(host in projectFiles)) throw new Error(`Unsupported host: ${host}`);
  if (scope === "project") return projectFiles[host];
  if (scope === "agent") {
    if (!agentFiles[host]) throw new Error(`No agent memory target for host: ${host}`);
    return agentFiles[host];
  }
  if (existsSync(projectFiles[host])) return projectFiles[host];
  if (agentFiles[host] && existsSync(agentFiles[host])) return agentFiles[host];
  return projectFiles[host];
}

export function buildBundleManifest(preset) {
  return {
    bundle_id: preset.bundle_id,
    title: preset.title,
    repo: preset.repo,
    bootstrap_skill: preset.bootstrap_skill,
    skills: preset.skills,
    routes: preset.routes,
    install_commands: installCommands(preset),
    host_targets: buildHostTargets(),
    share: preset.share,
    index: preset.index,
  };
}

export function buildShareManifest(preset) {
  return {
    bundle_id: preset.bundle_id,
    transport: preset.share.transport,
    manifest_path: preset.share.manifest_path,
    repo: preset.repo,
    skills: preset.skills,
    install_commands: installCommands(preset),
    host_targets: buildHostTargets(),
  };
}

export function buildRegistryEntry(preset) {
  return {
    slug: preset.index.slug,
    title: preset.title,
    summary: preset.index.summary,
    tags: preset.index.tags,
    repo: preset.repo,
    bundle_id: preset.bundle_id,
    bootstrap_skill: preset.bootstrap_skill,
    skills: preset.skills,
    routes: preset.routes,
  };
}

#!/usr/bin/env node

import { existsSync, mkdirSync, readFileSync, writeFileSync } from "node:fs";
import path from "node:path";
import {
  parseArgs,
  readPreset,
  renderMemoryBlock,
  targetFileFor,
  upsertManagedBlock,
  validatePreset,
} from "./lib.mjs";

function main() {
  const flags = parseArgs(process.argv);
  const host = String(flags.host || "");
  const scope = String(flags.scope || "auto");
  const cwd = path.resolve(String(flags.cwd || process.cwd()));
  const preset = validatePreset(readPreset(flags.preset));
  const targetFile = targetFileFor(host, scope, cwd);
  const block = renderMemoryBlock(preset, host);
  const existing = existsSync(targetFile) ? readFileSync(targetFile, "utf8") : "";
  const updated = upsertManagedBlock(existing, block);

  mkdirSync(path.dirname(targetFile), { recursive: true });
  writeFileSync(targetFile, updated);

  process.stdout.write(JSON.stringify({
    host,
    scope,
    target_file: targetFile,
    bundle_id: preset.bundle_id,
    skills: preset.skills,
    repo: preset.repo,
  }, null, 2) + "\n");
}

main();

import test from "node:test";
import assert from "node:assert/strict";
import { mkdtempSync, readFileSync, rmSync } from "node:fs";
import os from "node:os";
import path from "node:path";
import { execFileSync } from "node:child_process";
import { fileURLToPath } from "node:url";

const tmpDirs = [];
const REPO_ROOT = path.dirname(path.dirname(fileURLToPath(import.meta.url)));

test.afterEach(() => {
  while (tmpDirs.length > 0) {
    rmSync(tmpDirs.pop(), { recursive: true, force: true });
  }
});

test("builds bundle, share, registry, and host artifacts from one preset", () => {
  const outDir = mkdtempSync(path.join(os.tmpdir(), "skill-bundle-build-"));
  tmpDirs.push(outDir);

  const stdout = execFileSync(process.execPath, [
    "scripts/build-bundle.mjs",
    "--preset", "presets/unbrowse-workflows.json",
    "--out", outDir,
  ], {
    cwd: REPO_ROOT,
    encoding: "utf8",
  });

  const result = JSON.parse(stdout);
  const bundleDir = path.join(outDir, "unbrowse-workflows");
  const bundle = JSON.parse(readFileSync(path.join(bundleDir, "bundle.json"), "utf8"));
  const share = JSON.parse(readFileSync(path.join(bundleDir, "share.json"), "utf8"));
  const registry = JSON.parse(readFileSync(path.join(bundleDir, "registry-entry.json"), "utf8"));
  const claude = readFileSync(path.join(bundleDir, "hosts", "claude", "CLAUDE.md"), "utf8");

  assert.equal(result.bundle_id, "unbrowse-workflows");
  assert.equal(bundle.bundle_id, "unbrowse-workflows");
  assert.equal(share.transport, "files");
  assert.equal(registry.slug, "unbrowse-workflows");
  assert.match(claude, /call `main-actions-triage`/);
});

import test from "node:test";
import assert from "node:assert/strict";
import { mkdtempSync, mkdirSync, readFileSync, rmSync } from "node:fs";
import os from "node:os";
import path from "node:path";
import { execFileSync } from "node:child_process";
import { fileURLToPath } from "node:url";

const tmpDirs = [];
const REPO_ROOT = path.dirname(path.dirname(fileURLToPath(import.meta.url)));

test.afterEach(() => {
  while (tmpDirs.length > 0) {
    rmSync(tmpDirs.pop(), { recursive: true, force: true });
  }
});

test("writes Claude agent memory with executable routing rules", () => {
  const home = mkdtempSync(path.join(os.tmpdir(), "skill-bundle-fabric-"));
  tmpDirs.push(home);
  mkdirSync(path.join(home, ".claude"), { recursive: true });

  const stdout = execFileSync(process.execPath, [
    "scripts/write-host-memory.mjs",
    "--preset", "presets/unbrowse-workflows.json",
    "--host", "claude",
    "--scope", "agent",
    "--cwd", home,
  ], {
    cwd: REPO_ROOT,
    env: { ...process.env, HOME: home },
    encoding: "utf8",
  });

  const result = JSON.parse(stdout);
  const target = path.join(home, ".claude", "CLAUDE.md");
  const written = readFileSync(target, "utf8");

  assert.equal(result.target_file, target);
  assert.match(written, /call `history-skill-miner`/);
  assert.match(written, /call `docs-release-sync`/);
});

test("prefers project memory in auto scope when the file exists", () => {
  const home = mkdtempSync(path.join(os.tmpdir(), "skill-bundle-fabric-project-"));
  tmpDirs.push(home);
  mkdirSync(path.join(home, ".codex"), { recursive: true });
  execFileSync("sh", ["-lc", "printf '# local\\n' > AGENTS.md"], { cwd: home });

  execFileSync(process.execPath, [
    "scripts/write-host-memory.mjs",
    "--preset", "presets/unbrowse-workflows.json",
    "--host", "codex",
    "--scope", "auto",
    "--cwd", home,
  ], {
    cwd: REPO_ROOT,
    env: { ...process.env, HOME: home },
    encoding: "utf8",
  });

  const written = readFileSync(path.join(home, "AGENTS.md"), "utf8");
  assert.match(written, /SKILL_BUNDLE_FABRIC/);
});