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agents-shipgate

agents-shipgate is a skill for Claude Code, Codex from ThreeMoonsLab/agents-shipgate. It costs 212 tokens per session (4,589 once invoked), scanned A, original, Apache-2.0.

A static checker for changes that add or modify AI-agent tools, such as MCP servers, OpenAPI tool descriptions, or agent configuration. It reviews local files without running agents or contacting external services.

In plain words
What is it for?
Use it to check agent capability changes, inspect tool definitions, review permissions and approval rules, and create Markdown, JSON, or SARIF release reports.
Why use it?
It helps catch unsafe or incomplete tool-use changes before they are merged. The review produces repeatable findings and machine-readable reports.

Skill for Claude CodeCodex

not rated 87 changed today A scan 212 tokens original Apache-2.0
View the source file ThreeMoonsLab/agents-shipgate
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.

agentmods
npx agentmods add skills/threemoonslab/agents-shipgate/claude-code-skill
Any agent
npx skills add ThreeMoonsLab/agents-shipgate --skill claude-code-skill
Clone the repo
git clone --depth 1 https://github.com/ThreeMoonsLab/agents-shipgate

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 agents-shipgate

README.md
[![agentmods](https://agentmods.dev/badge/skills/threemoonslab/agents-shipgate/claude-code-skill.svg)](https://agentmods.dev/skills/threemoonslab/agents-shipgate/claude-code-skill)
Your own site
<a href="https://agentmods.dev/skills/threemoonslab/agents-shipgate/claude-code-skill"><img src="https://agentmods.dev/badge/skills/threemoonslab/agents-shipgate/claude-code-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 212 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,589 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00212 $0.04589
Opus 5 $0.00106 $0.02295
Sonnet 5 $0.00042 $0.00918
Haiku 4.5 $0.00021 $0.00459

Measured today against content hash b09ffc59ad9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agents-shipgate 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 today.

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.

adoption-kits/claude-code-skill/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

agents-shipgate skill

agents-shipgate is the deterministic merge gate for AI-generated agent capability changes — a local-first, static Tool-Use Readiness review. It analyzes shipgate.yaml plus tool sources (MCP exports, OpenAPI specs, OpenAI Agents SDK Python files, Anthropic Messages API artifacts, Google ADK files, LangChain/LangGraph files, CrewAI files, OpenAI API artifacts, Codex repo config, Codex plugin packages and marketplaces, n8n workflow JSON, Conductor OSS workflow JSON) and emits deterministic verifier artifacts, findings, Markdown, JSON, and SARIF.

It does not run agents, call tools, invoke LLMs, connect to MCP servers, or send telemetry by default. Static analysis only; audited exceptions are pinned in tests/test_adapter_static_only.py::ALLOWED_EXCEPTIONS.

The skill name is intentionally agents-shipgate (not shipgate) so it does not collide with the /shipgate slash command shipped at .claude/commands/shipgate.md — Claude Code lets a skill with the same name preempt a command, which would bypass the bootstrap flow the slash command is meant to deliver.

When to use this skill

  • The current diff adds or modifies MCP server or tool definitions, @tool/@function_tool decorators, OpenAPI specs describing agent tools, agent prompts, permission scopes, approval/confirmation policies, or agent CI workflows — run the verifier before reporting the change complete or creating a PR.
  • The user asks to add Tool-Use Readiness or pre-merge checks to an agent project.
  • The user asks whether an AI-generated agent PR can merge.
  • The repo already has shipgate.yaml, agents-shipgate-reports/verifier.json, or agents-shipgate-reports/report.json.
  • The user asks to fix, triage, suppress, or explain a Shipgate finding.
  • The user wants to add Shipgate to CI (GitHub Actions, GitLab CI, CircleCI).

When NOT to use this skill

  • Generic linting / type checking — use the project's existing tooling.
  • Runtime monitoring, evals, or behavioral testing — Shipgate is static-only.
  • LLM output quality assessment — out of scope.
  • Editing agents-shipgate's own check implementations — that's upstream-repo work, not user-repo work.

Read the full file on GitHub · 123 lines

Files

What ships with it

11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today Changed b09ffc59ad9e
  2. 4d ago First seen · 123 lines · 212 tokens per session scan A 6aedbd716d37

Subscribe to this mod's changes

agents-shipgate is a skill published in the GitHub repository ThreeMoonsLab/agents-shipgate (87 stars, last pushed today), licensed Apache-2.0. It adds 212 tokens to every session and 4,589 once invoked, about $0.0011 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 2026-08-30.

CI and CDWeb3 and blockchainai-agentsgithub-actionsmcpopenapistatic-analysis
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