Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add cyanheads/openstates-mcp-server --skill api-configgit clone --depth 1 https://github.com/cyanheads/openstates-mcp-serverWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/cyanheads/openstates-mcp-server/api-config)<a href="https://agentmods.dev/skills/cyanheads/openstates-mcp-server/api-config"><img src="https://agentmods.dev/badge/skills/cyanheads/openstates-mcp-server/api-config.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.05235 |
| Opus 5 | $0.00022 | $0.02618 |
| Sonnet 5 | $0.00009 | $0.01047 |
| Haiku 4.5 | $0.00004 | $0.00524 |
Grade A, and why
api-config scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to api-config — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 289 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
Configuration has two layers: core config (managed by the framework, env-driven) and server config (your own Zod schema for domain-specific env vars). Never merge them.
Import: AppConfig, config, parseConfig, resetConfig, ConfigSchema from @cyanheads/mcp-ts-core/config.
Core config
Managed by @cyanheads/mcp-ts-core. Validated via Zod from environment variables. Uses a lazy proxy — parsing is deferred until the first property read.
Priority (highest to lowest):
name/version/title/websiteUrl/description/iconsoptions passed tocreateApp()orcreateWorkerHandler()- Environment variables
package.jsonfields
Identity
| Env Var | AppConfig field |
Default | Notes |
|---|---|---|---|
MCP_SERVER_NAME |
mcpServerName |
package.json name |
Overrides package name |
MCP_SERVER_VERSION |
mcpServerVersion |
package.json version |
Overrides package version |
MCP_SERVER_DESCRIPTION |
mcpServerDescription |
package.json description |
Optional; createApp({ description }) wins when set |
PACKAGE_NAME |
pkg.name |
package.json name |
Rarely needed |
PACKAGE_VERSION |
pkg.version |
package.json version |
Rarely needed |
SDK identity fields (API-only, no env var equivalent — passed to createApp() / createWorkerHandler(), forwarded to initialize and /.well-known/mcp.json):
| Option | Type | Notes |
|---|---|---|
title |
string? |
Human-readable display name shown in client listings |
websiteUrl |
string? |
Canonical homepage / repository URL |
description |
string? |
One-line description; wins over MCP_SERVER_DESCRIPTION when set |
icons |
Implementation['icons']? |
Array of icon objects: { src, mimeType?, sizes?: string[], theme?: 'light'|'dark' } |
cacheHints |
CacheHints? |
Cache hints for the 2026-07-28 cacheable results, keyed by operation — see below |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 289 lines · 43 tokens per session scan A 9b2ee869e324
api-config is a skill published in the GitHub repository cyanheads/openstates-mcp-server (2 stars, last pushed 13d ago), licensed Apache-2.0. It adds 43 tokens to every session and 5,235 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to api-config, differing in 8 lines, and is treated as a copy.
Other skills, from other repositories
release-and-publish
Ship a release end-to-end across every registry the project targets (npm, MCP Registry, GitHub Releases for .mcpb bundles, GHCR). Runs the final verification gate, pushes commits and tags, then publishes to each applicable destination. Assumes git wrapup (version bumps, changelog, commit, annotated tag) is already…
design-mcp-server
Design the tool surface, resources, and service layer for a new MCP server. Use when starting a new server, planning a major feature expansion, or when the user describes a domain/API they want to expose via MCP. Produces a design doc at docs/design.md that drives implementation.
add-tool
Scaffold a new MCP tool definition. Use when the user asks to add a tool, create a new tool, or implement a new capability for the server.
api-context
Canonical reference for the unified Context object passed to every tool and resource handler in @cyanheads/mcp-ts-core. Covers the full interface, its RequestContext base, all sub-APIs (ctx.log, ctx.state, ctx.requestInput, ctx.inputs, ctx.enrich, ctx.content), and when to use each.
api-linter
MCP definition linter rules reference. Use when bun run lint:mcp or bun run devcheck reports a lint error or warning (format-parity, schema-is-object, name-format, server-json-, etc.) and you need to understand the rule, its severity, and how to fix it. Every rule ID the linter emits has an entry in this doc.
api-canvas
DataCanvas primitive reference — a Tier 3 SQL/analytical workspace for tabular MCP servers, backed by DuckDB. Use when registering tables from upstream APIs, running ad-hoc SQL across them, and exporting results. Covers the acquire → register → query → export flow, per-table TTL, the token-sharing pattern for…