ask-json
Wrap a model call so the reply must match a JSON Schema. Rejects prose, repairs once, then fails loud. Use before any write tool.
Catalog / tools
14 free MCP tools for AI agents
Small, composable utilities — each card links to a real file in tools/bin/. Pair with cheaperllm for model calls and anymodl for a single MCP URL.
Download all: copy the bin README + every .mjs script (Node 18+, no npm install). Run node tools/bin/<tool>.mjs --help.
fetch-safe
HTTP client with hard timeouts, response size caps, redirect limits, and host allowlists. Stops agents from slurping unbounded HTML.
token-meter
Estimate tokens and log spend per tool call. Point it at cheaperllm usage so you can kill runaway loops before they burn credit.
mcp-probe
Connect to an MCP endpoint, list tools and resources, print a one-page capability sheet. Works with anymodl MCP URLs.
diff-pack
Turn a unified diff into a structured summary: files touched, risk tags, and suggested test commands for the next agent turn.
env-gate
Fail fast if required secrets are missing. Agents should not invent API keys — gate tools behind explicit env checks.
crawl-map
Merge robots.txt, sitemap.xml, and llms.txt into a single machine map. Ideal first step when an agent lands on a new site.
prompt-lint
Static checks for missing output contracts, unbounded tool grants, and common injection patterns in prompt packs.
session-tape
Record every tool call and result as JSONL. Replay offline for debugging without re-hitting paid models.
model-router
Policy file: cheap model for classify/extract, strong model for plan/ship. Backed by cheaperllm OpenAI-compatible routes — including Claude.
domain-check
Quick availability probe with renewal-aware pricing links to Agora Domains, TLD Bazaar, and BareDomains.
pack-zip
Bundle a workflow folder (README + prompts + mcp.json) into a shareable pack with a checksum manifest.
catalog-pull
Fetch /api/catalog.json and print tools, MCP servers, packs, and workflows — keep local agent manifests in sync with the site.
cost-board
Print cheap vs strong model tiers and sample cheaperllm curl — use before long agent loops to cap spend.
mcp-attach-cheaperllm
One-step attach for cheaperllm MCP: endpoint URL, probe script, and Cursor config pointers. Start at the MCP hub.
dual-registrar-check
Compare OpenProvider (Agora / TLD Bazaar) vs Porkbun pricing before register. Operator OK required — never auto-purchase.
smoke-site
HTTP 200 smoke check for critical AgentStackKit paths — run after every deploy.