Fabro is an open-source system for defining software-development workflows as graphs that AI coding agents execute with verification steps and opportunities for human intervention. Expert engineers and teams use it to coordinate agent tasks, combine models, share version-controlled processes, run agents in isolated sandboxes, and queue work through an API server. The catalogue entries are Fabro-specific skills, instructions, hooks, and settings for working with the system.
Borrowing it
Nothing to install: this file belongs to fabro-sh/fabro. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/fabro-sh/fabro/main/.claude/skills/docs/SKILL.mdgit clone --depth 1 https://github.com/fabro-sh/fabroWrote 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.
[](https://agentmods.dev/skills/fabro-sh/fabro/docs)<a href="https://agentmods.dev/skills/fabro-sh/fabro/docs"><img src="https://agentmods.dev/badge/skills/fabro-sh/fabro/docs/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/fabro-sh/fabro/docs"><img src="https://agentmods.dev/badge/skills/fabro-sh/fabro/docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.00578 |
| Opus 5.5 | $0.00017 | $0.00231 |
| Sonnet 5.5 | $0.00009 | $0.00116 |
| Haiku 4.5 | $0.00004 | $0.00058 |
Grade A, and why
update-docs 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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Update Docs
Detect code changes since the last run and update affected documentation pages.
- references/mapping.md — code-to-doc page mapping
- Follow
CONTRIBUTING.mdandAGENTS.md(repo root) for writing style
Workflow
1. Read watermark
Read .claude/skills/docs/watermark for the last processed commit SHA. If the file is missing (first run), use the commit from 30 days ago as the starting point: git log --before="30 days ago" --format=%H -1 main.
2. Gather changes
Run git log --oneline --no-merges --name-only <watermark>..HEAD to get changed files and commit messages since the watermark.
3. Map changes to doc pages
Cross-reference changed files against the code-to-doc mapping in references/mapping.md. Also use judgment for unmapped files (e.g., new crates or modules that clearly affect user-facing behavior).
Filter to user-facing behavioral changes only:
- New features, flags, commands, config options, node types
- Changed behavior, renamed APIs, new integrations
- Bug fixes that affect documented behavior
Skip:
- Internal refactors with no behavior change
- Test-only changes
- CI/CD pipeline changes
- Dependency bumps
- Code style or linting changes
If nothing affects docs, tell the user and stop.
4. Read code and docs
For each affected doc page: read the current MDX file and the relevant source files. Identify sections that are outdated, missing, or incorrect.
5. Update doc pages
Surgical edits only — change only affected sections. Preserve existing voice, structure, heading hierarchy, and Mintlify component usage.
- Add code examples for new features (CLI commands, config snippets, DOT syntax)
- Insert rows into reference tables in logical position
- Add new sections for entirely new capabilities
- Update existing descriptions when behavior changes
- Never edit
docs/public/api-reference/fabro-api.yaml— that is the API workflow's source of truth
6. Validate DOT examples
If any updated page contains ```dot code blocks with digraph definitions, run ./test/docs/run_tests.sh validate. Fix any failures before proceeding.
What ships with it
2 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.
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.
- 2mo ago First seen · 66 lines · 43 tokens per session scan A 523174189ef5
update-docs is a skill published in the GitHub repository fabro-sh/fabro (1,812 stars, last pushed yesterday), licensed MIT. It adds 43 tokens to every session and 578 once invoked, about $0.0002 per session on Opus 5.5. 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.
update-docs compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| update-docsfabro-sh/fabro | Skill | 1.8k | yesterday | MIT | A | 43 | Claude Code |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 103 | Claude Code |