codex-claude-mcp: Skill for Claude Code

.agents/skills/connecting-apis-to-mcp/SKILL.md

connecting-apis-to-mcp is a skill for Claude Code, Codex from Cyruskraad/codex-claude-mcp. It costs 33 tokens per session (369 once invoked), scanned A, original, MIT.

A guide for connecting a real web API to MCP, including its address, credentials, and response fields. An API is a service that lets software request data or perform actions.

In plain words
What is it for?
Use it to connect an OpenAPI-described service or credentialed API, test a safe live read, and map its returned data into MCP behavior.
Why use it?
It prevents guesswork when authentication, network access, response formats, or field mapping causes an integration to fail.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is Cyruskraad/codex-claude-mcp's own configuration. It tells Claude Code and Codex how to work on codex-claude-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codex-claude-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Cyruskraad/codex-claude-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Cyruskraad/codex-claude-mcp/main/.agents/skills/connecting-apis-to-mcp/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Cyruskraad/codex-claude-mcp

Made for: Claude Code, Codex.

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 connecting-apis-to-mcp

README.md
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Your own site
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agentmods 80×15 button for connecting-apis-to-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/cyruskraad/codex-claude-mcp/connecting-apis-to-mcp"><img src="https://agentmods.dev/badge/skills/cyruskraad/codex-claude-mcp/connecting-apis-to-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 369 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.
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 $0.00033 $0.00369
Opus 5 $0.00016 $0.00185
Sonnet 5 $0.00007 $0.00074
Haiku 4.5 $0.00003 $0.00037

Measured 11d ago against content hash 86d6f0a24319, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

connecting-apis-to-mcp 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 11d 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.

.agents/skills/connecting-apis-to-mcp/SKILL.md · 48 lines

What it actually says

connecting-apis-to-mcp

Connect a real API using managed credentials and mappings proven against observed output.

Use when

  • Connect this OpenAPI URL to MCP.
  • Use these API credentials for a real connector.

Do not use when

  • Do not use for static local behavior.
  • Do not use when credentials or a representative safe read are unavailable.

Required inputs

  • API base URL and authentication scheme.
  • Representative safe read.
  • User intent and observed response shape.

Workflow

Read and follow the canonical playbook references/connect-an-api.md at ../noodle-seed/references/connect-an-api.md. It owns the workflow; do not recreate it here or load the command catalog speculatively. Load references/authoring-workflow.md at ../noodle-seed/references/authoring-workflow.md only when the playbook or observed evidence names that concern.

Verification evidence

A safe live read returns populated intentionally mapped fields through the effective local target.

Recovery paths

Separate authentication, transport, response-shape, mapping, and empty-result failures before editing.

Stop conditions

Stop before live writes without explicit approval, known effect, and a safe target.

Handoff contract

Pass the selected outcome, explicit target, changed files, commands run, passing evidence, first unproven evidence layer, sanitized failure, remaining authority, and exact next action. The receiving skill continues from that layer; do not restart discovery or discard prior proof.

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. 11d ago First seen · 48 lines · 33 tokens per session scan A 86d6f0a24319

Subscribe to this mod's changes

connecting-apis-to-mcp is a skill published in the GitHub repository Cyruskraad/codex-claude-mcp (0 stars, last pushed 15d ago), licensed MIT. It adds 33 tokens to every session and 369 once invoked, about $0.0002 per session on Opus 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 2026-08-31.

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