Seamark — AI skill for Claude Code
🛡️ Change control for AI coding agents.
How to install Seamark
This entry records only its repository, not the path inside it, so there is no
exact command to give. Open marcosmatalab/seamark and copy the folder into
~/.claude/skills/, or the file into ~/.claude/agents/.
What Seamark does
🛡️ Change control for AI coding agents. See what Claude Code, Cursor, Codex and Gemini CLI can do in your repo (hooks, MCP servers, permissions) and what every pull request changes. Offline CLI, GitHub Action, SARIF.
Alternatives in AI
- Omniget — Udemy & Hotmart course downloader, YouTube downloader (yt-dlp GUI, 1,800+ sites) + desktop app for AI agents 13.9k ★
- Memory Forge Rs — Stop resetting satisfying AI chats — edit the memory instead 474 ★
- HarnessKit — More than a skill manager — manage skills, MCP servers, plugins, hooks, CLIs, configs, memory & rules across e 416 ★
README
⚓ Seamark
**Change control for what your AI agents can do.**
Seamark reads the configuration your coding agents load, resolves what it actually lets them do, and tells you exactly what changed between two commits.
[](https://github.com/marcosmatalab/seamark/actions/workflows/ci.yml) [](pyproject.toml) [](LICENSE) [](#-verify-this-in-60-seconds) [](#in-a-pull-request-the-action-and-the-pre-commit-hook) [](#in-a-pull-request-the-action-and-the-pre-commit-hook)
**Seamark 3.0.0** · Apache-2.0 · one runtime dependency · offline, no telemetry, no account
**[Español](README.es.md)** · [What it does](#-what-it-does-in-plain-words) · [Quickstart](#-quickstart) · [Trade-offs](#-design-trade-offs) · [Commands](docs/COMMANDS.md) · [Design](docs/DESIGN.md)
pip install git+https://github.com/marcosmatalab/seamark && seamark check💡 What it does, in plain words
AI coding agents (Claude Code, Cursor, Codex CLI, Gemini CLI) read configuration from your repository **before you type anything**: hooks that run commands at session start, MCP servers they connect to, permissions, sandbox policy, instruction files. One pull request can quietly give an agent new powers, and no single file tells you what the agent is allowed to do.
**Seamark is the diff for those powers.** It answers three questions:
| Question | Command | |
|---|---|---|
| 🔍 | What can an agent do in this repository right now? | seamark check |
| 🔀 | *What did this pull reque |
Related Skills
Sourceant
Persistent memory for AI coding agents: decisions, rules, API contracts, and system topology served over MCP t
Code Agent
An AI Agent that operates on GitHub Actions. By using this action, you can directly invoke Coding Agent CLI fr
AI Config Sync Manager
Bidirectional sync for Claude Code and Codex — instructions, skills, agents, MCP servers, hooks, permissions.
Frostagent
Deny-by-default capability linter for AI agent setups: MCP servers, hooks, permissions, skills. A one-screen p
Quorum Review
Cross-model pull request review on Gemini Enterprise Agent Platform. Gemini and Claude read each diff independ
Friday
One CLI to manage AI agent configs from a single canonical store. One YAML source renders onto Claude Code, Co
Related Agents
Claude Code Infra
Use PROACTIVELY and automatically — do not wait to be asked — to configure Claude Code itself: sub-agents, ski
Ccxt PR Reviewer
End-to-end review of a CCXT pull request. Reads the diff, transpiles and builds in all six languages (TS/JS, P
Synapse Planner
Planning step in the Manager subagent pipeline (see synapse-manager.md) — dispatched by Manager, not for stand
