project-guidance

project-guidance is a skill for Claude Code, Codex from qingye-lab/rootloom. It costs 42 tokens per session (816 once invoked), scanned A, original, MIT.

A tool for creating and checking AGENTS.md files, which are repository instructions for coding agents. It keeps a managed section evidence-based and allows durable project-specific rules outside that section.

In plain words
What is it for?
Seeding, refreshing, refining, or validating project instructions. It is useful for documenting repository conventions and checking that the guidance remains accurate.
Why use it?
It helps agents follow consistent repository rules without silently changing guidance. Validation is read-only, while saving or refining guidance requires explicit permission.

Skill for Claude CodeCodex

Written for Claude Code and Codex: SessionStart hook event, but also agents/openai.yaml present. Also seen: mentions AGENTS.md; mentions Codex.

Good fit Seeding, refreshing, refining, or validating project instructions. It is useful for documenting repository conventions and checking that the guidance remains accurate.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/qingye-lab/rootloom/project-guidance
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.

Any agent
npx skills add qingye-lab/rootloom --skill project-guidance
Clone the repo
git clone --depth 1 https://github.com/qingye-lab/rootloom

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 project-guidance

README.md
[![agentmods](https://agentmods.dev/badge/skills/qingye-lab/rootloom/project-guidance.svg)](https://agentmods.dev/skills/qingye-lab/rootloom/project-guidance)
Your own site
<a href="https://agentmods.dev/skills/qingye-lab/rootloom/project-guidance"><img src="https://agentmods.dev/badge/skills/qingye-lab/rootloom/project-guidance.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 816 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00042 $0.00816
Opus 5 $0.00021 $0.00408
Sonnet 5 $0.00008 $0.00163
Haiku 4.5 $0.00004 $0.00082

Measured 7d ago against content hash 7e5b810113cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

project-guidance 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 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/seed_project_guidance.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/rootloom/skills/project-guidance/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project guidance

Use when the user explicitly asks to persist, refresh, refine, or validate project guidance, or when active repository guidance requests validation. The SessionStart Hook is read-only and never invokes a writer.

Persistent seed, refresh, or refinement requires explicit user intent. The only repository-authored exception is this exact standalone one-time marker in active guidance:

<!-- rootloom:refine-once version=1 -->

It authorizes one refinement of that marked file only. Remove it in the same successful write; validation does not consume it. Natural-language guidance alone never authorizes persistent refinement or any other write.

Route the mode

explicit seed request                  → seed
explicit refresh request               → refresh
explicit refinement or exact marker    → refine
user/repository validation request     → validate

Resolve this Skill directory and probe first:

python3 <skill-dir>/scripts/seed_project_guidance.py probe --cwd "$PWD"

Seed or refresh

Run the deterministic writer:

python3 <skill-dir>/scripts/seed_project_guidance.py seed --cwd "$PWD"

Run that command without a trust override first. If and only if it returns the exact untrusted_project skip reason and the user explicitly requested persistence in this exact repository, retry once with --allow-untrusted. The flag is scoped to that invocation and does not change Codex or host trust settings. Never infer this override from a general request to inspect, review, or change code.

It derives observable facts from manifests, lockfiles, package scripts, Make/Just targets, canonical docs, CI, and bounded module discovery. It locks through the Git common directory, checks concurrent edits, writes atomically, and owns only its marked managed block.

Never overwrite an unmarked existing AGENTS.md, AGENTS.override.md, symlinked guidance, untrusted or disabled projects, temporary paths, vendor/cache trees, or evidence resolved outside the repository. Respect every script skip reason.

Read the full file on GitHub · 104 lines

Files

What ships with it

3 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. 7d ago First seen · 104 lines · 42 tokens per session scan A 7e5b810113cb

Subscribe to this mod's changes

project-guidance is a skill published in the GitHub repository qingye-lab/rootloom (9 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 816 once invoked, about $0.0002 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 2026-08-31.

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