api-config

api-config is a skill for Claude Code from cyanheads/obsidian-mcp-server. It costs 43 tokens per session (7,122 once invoked), scanned A, original, Apache-2.0.

A reference for configuring a server built with `@cyanheads/mcp-ts-core`. It separates framework settings from the server’s own environment variables and explains how configuration is validated.

In plain words
What is it for?
Use it when adding or reviewing environment-based configuration, defining a server-specific Zod schema, or handling configuration in regular servers and Workers.
Why use it?
It prevents core and application-specific settings from being mixed together and clarifies which value takes priority when several sources define one setting.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the obsidian-mcp-server plugin — 33 skills, 1 MCP server shipped together

Good fit Use it when adding or reviewing environment-based configuration, defining a server-specific Zod schema, or handling configuration in regular servers and Workers.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cyanheads/obsidian-mcp-server/api-config
Install

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.

Any agent
npx skills add cyanheads/obsidian-mcp-server --skill api-config
Clone the repo
git clone --depth 1 https://github.com/cyanheads/obsidian-mcp-server

Made for: Claude Code.

Or install obsidian-mcp-server, the plugin that ships this one along with the rest of its 33 skills, 1 MCP server.

Wrote 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.

agentmods badge for api-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/cyanheads/obsidian-mcp-server/api-config/github.svg)](https://agentmods.dev/skills/cyanheads/obsidian-mcp-server/api-config)
Your own site
<a href="https://agentmods.dev/skills/cyanheads/obsidian-mcp-server/api-config"><img src="https://agentmods.dev/badge/skills/cyanheads/obsidian-mcp-server/api-config/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for api-config

Your own site · 80×15
<a href="https://agentmods.dev/skills/cyanheads/obsidian-mcp-server/api-config"><img src="https://agentmods.dev/badge/skills/cyanheads/obsidian-mcp-server/api-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,122 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.07122
Opus 5.5 $0.00017 $0.02849
Sonnet 5.5 $0.00009 $0.01424
Haiku 4.5 $0.00004 $0.00712

Measured 17d ago against content hash 38196ef39f16, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 17d 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.

Origin

Copies of this mod

8 near-identical copies found in the catalogue:

framework-skills/api-config/SKILL.md · 309 lines

How it starts

The opening of the file, as written. The whole thing — 309 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):

  1. name/version/title/websiteUrl/description/icons options passed to createApp() or createWorkerHandler()
  2. Environment variables
  3. sessionMode.default passed to createApp() — a default, so it sits below the env var it seeds, unlike the identity options above
  4. package.json fields

Where package.json is read from: the application root — the nearest package.json at or above the process entry module (process.argv[1]), which is the served package on every launch path (npx, .mcpb, a client config naming dist/index.js), none of which run from the package root. The launching client's working directory is never the anchor: a stdio client starts the server from wherever it happens to be, so reading identity from there makes a server report a foreign project's name and version. When the entry module is a tool installed under a node_modules tree and the process runs from the directory owning that tree — a test runner is the usual case — the nearest manifest at or above the working directory wins instead. That also covers a workspace monorepo, where the runner is hoisted to the repo root while the process runs from a package directory: an owner that is a strict ancestor of the working directory qualifies only when it declares a workspace (a workspaces field in its manifest, or a pnpm-workspace.yaml beside it), which is what keeps a cache prefix or a plain project root — equally ancestors of a working directory inside them — from overriding an installed package's own identity. The owner is the outermost node_modules boundary, so a transitively-installed runner and a pnpm isolated layout resolve the same way. With no manifest reachable, the framework's own identity is the fallback.

Read the full file on GitHub · 309 lines

Changes

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.

  1. 17d ago Changed · +14 lines 38196ef39f16
  2. 1mo ago Changed · +16 lines 437f472735b4
  3. 1mo ago Changed · +2 lines 16105c7a2519
  4. 1mo ago Changed · -14 lines 4d72f2efde5c
  5. 1mo ago Changed · +2 lines ca8a851407a1
  6. 1mo ago First seen · 289 lines · 43 tokens per session scan A 9b2ee869e324

Subscribe to this mod's changes

api-config is a skill published in the GitHub repository cyanheads/obsidian-mcp-server (700 stars, last pushed 17d ago), licensed Apache-2.0. It adds 43 tokens to every session and 7,122 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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