claude-code

A guide for connecting Claude Code to Shipgate, a tool that checks coding-agent work against project rules. It explains Claude Code's project settings, instructions, tools, and permissions that Shipgate can inspect.

In plain words
What is it for?
Use it to run Shipgate checks from Claude Code, discover Claude-specific project rules and tool settings, and verify committed changes in continuous integration.
Why use it?
It gives Claude Code a consistent process for handling the checker's structured results and human-review requests. It also clarifies that the agent label does not hide changes made for other coding tools.

Agent

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 agents/threemoonslab/agents-shipgate/claude-code
Clone the repo
git clone --depth 1 https://github.com/ThreeMoonsLab/agents-shipgate
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 451 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 $0.00000 $0.00451
Opus 5 $0.00000 $0.00226
Sonnet 5 $0.00000 $0.00090
Haiku 4.5 $0.00000 $0.00045

Measured 2d ago against content hash 47487168ed80, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

claude-code 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 2d 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.

docs/agents/claude-code.md · 47 lines

What it actually says

Use Agents Shipgate With Claude Code

Claude Code uses the shared agent-native protocol:

shipgate check --agent claude-code --workspace . --format agent-boundary-json

Parse stdout as shipgate.agent_boundary_result/v2. Switch only on control.state; follow control.next_action, control.allowed_next_commands, and control.human_review. Treat decision as diagnostic context only. --agent claude-code labels the caller; it does not limit the check to Claude files or hide changes to another host's boundary.

If the binary is missing, surface the schema-valid install fixture with control.state="agent_action_required", control.next_action.kind="install", and command pipx install agents-shipgate. After installation, rerun shipgate check; do not invent a natural-language decision.

Claude Code-specific discovery surfaces:

  • .claude/settings.json and .claude/settings.local.json permission modes, rules, sandbox/network settings, additional paths, plugins, and hooks
  • project MCP declarations in .mcp.json
  • repo-level CLAUDE.md
  • repo-scoped skill .claude/skills/agents-shipgate/
  • slash command /agents-shipgate when the skill is installed

Use shipgate audit --host --scope local-static only when you intentionally want supported user and file-based managed settings included. Shipgate never executes policyHelper and does not observe remote/session state.

For committed PR verification, use the CI substrate after the local check:

agents-shipgate verify --workspace . --config shipgate.yaml --base origin/main --head HEAD --ci-mode advisory --format json

Read agents-shipgate-reports/agent-handoff.json first, then verifier.json, then verify-run.json, then report.json for reviewer evidence. Legacy agent-result.json surfaces are supporting/provisional compatibility projections for older automation consumers.

See protocol.md for the state machine, repair loop, policy discovery convention, and MCP read-only boundary.

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. 2d ago First seen · 47 lines · 0 tokens per session scan A 47487168ed80

Subscribe to this mod's changes

claude-code is an agent published in the GitHub repository ThreeMoonsLab/agents-shipgate (87 stars, last pushed 3d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 451 tokens. 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.