# trailmark-summary

This skill runs trailmark analyze --summary against a target directory and reports detected languages, entry point count and dependencies.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 3900 installs · ★ 7805
- Author: trailofbits
- License: CC-BY-SA-4.0 · policy=link-only · description only; the file stays with the author
- Source: https://github.com/trailofbits/skills/tree/HEAD/plugins/trailmark/skills/trailmark-summary/SKILL.md
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/trailmark-summary

## What it does

One pass over a directory gives you three things: the languages Trailmark detected through its parser, a line starting with `Entrypoints:`, and a line starting with `Dependencies:`. That is enough orientation before you start reading files in a repo you have never seen.

The workflow has four steps. First it checks whether `trailmark` is reachable, either directly or through `uv run`. Then it calls `trailmark.parse.detect_languages` — on 0.2.x builds the same function sits in `trailmark.query.api`. After that comes `trailmark analyze --language auto --summary {args}`. The last step is verification: if any of the three blocks is absent, the skill reports the gap instead of filling it in.

Installing Trailmark is on you. The skill never runs `pip install`, `uv pip install` or `git clone`. No `trailmark` in the environment means nothing happens at all. For a full pass with hotspot scores or taint data, reach for `trailmark-structural` instead — this one stops at the summary.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add trailofbits/skills --skill trailmark-summary -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/trailmark-summary/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/trailmark-summary/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add trailofbits/skills --skill trailmark-summary -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/trailmark-summary/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add trailofbits/skills --skill trailmark-summary -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/trailmark-summary/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install trailofbits/skills trailmark-summary
```

2. **Manually: put the files in place**
- File: `.github/skills/trailmark-summary/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add trailofbits/skills --skill trailmark-summary -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/trailofbits/skills --path plugins/trailmark/skills/trailmark-summary
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/trailmark-summary/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add trailofbits/skills --skill trailmark-summary -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/trailofbits/skills/tree/HEAD/plugins/trailmark/skills/trailmark-summary/SKILL.md

## When to use it
- list languages in an unfamiliar repository
- count entry points before decomposition
- collect the dependency list of a project
- get oriented in someone else's code before deep analysis
- check whether Trailmark sees the project at all

## Example prompts
- Run a trailmark summary over the `src` directory
- Give me a structural overview of this project with the detected languages
- Run trailmark-summary, I need entry points and dependencies

## Similar
- [setup-matt-pocock-skills](https://affpapa.org/en/nevibecode/skills/setup-matt-pocock-skills.md) — skill · 1052851 installs
- [ask-matt](https://affpapa.org/en/nevibecode/skills/ask-matt.md) — skill · 766587 installs
- [to-tickets](https://affpapa.org/en/nevibecode/skills/to-tickets.md) — skill · 711230 installs
- [writing-plans](https://affpapa.org/en/nevibecode/skills/writing-plans.md) — skill · 282859 installs
- [caveman-review](https://affpapa.org/en/nevibecode/skills/caveman-review.md) — skill · 411800 installs
- [caveman-compress](https://affpapa.org/en/nevibecode/skills/caveman-compress.md) — skill · 411500 installs

From the same set: [trailofbits/skills](https://affpapa.org/en/nevibecode/by/trailofbits/skills.md) — 77 cards

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md