project-rules-init

project-rules-init is a skill for Claude Code, Codex from aigoooowork/project-rules-bootstrap. It costs 27 tokens per session (745 once invoked), scanned A, original, Apache-2.0.

A skill for creating initial AI coding rules for an existing repository when no trusted rules baseline exists. It derives the rules from source code, configuration, tests, and observed commands.

In plain words
What is it for?
Use it when starting work on an unfamiliar codebase and creating compact rules for its architecture, conventions, commands, and tests.
Why use it?
It gives an AI coding agent repository-specific guidance based on evidence instead of assumptions. It also separates technical project rules from release or collaboration policies.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when starting work on an unfamiliar codebase and creating compact rules for its architecture, conventions, commands, and tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aigoooowork/project-rules-bootstrap/project-rules-init
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 aigoooowork/project-rules-bootstrap --skill project-rules-init
Clone the repo
git clone --depth 1 https://github.com/aigoooowork/project-rules-bootstrap

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-rules-init

README.md
[![agentmods](https://agentmods.dev/badge/skills/aigoooowork/project-rules-bootstrap/project-rules-init/github.svg)](https://agentmods.dev/skills/aigoooowork/project-rules-bootstrap/project-rules-init)
Your own site
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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.

agentmods 80×15 button for project-rules-init

Your own site · 80×15
<a href="https://agentmods.dev/skills/aigoooowork/project-rules-bootstrap/project-rules-init"><img src="https://agentmods.dev/badge/skills/aigoooowork/project-rules-bootstrap/project-rules-init.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 745 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.
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 $0.00027 $0.00745
Opus 5.5 $0.00011 $0.00298
Sonnet 5.5 $0.00005 $0.00149
Haiku 4.5 $0.00003 $0.00075

Measured 2mo ago against content hash 38ea2fa64234, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

project-rules-init 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.

skills/project-rules-init/SKILL.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Rules Init

Create compact canonical rules from source evidence. Source-only means source, effective configuration, tests, and observed commands; it excludes Git, PR, release, owner, deadline, and collaboration policy.

Required resources

Read ../../references/project-context.md, ../../references/candidate-ranking.md, ../../references/language-analyzer.md, ../../references/pattern-card.md, ../../references/coverage-contracts.md, ../../references/conflict-and-lifecycle.md, ../../references/code-chain-discovery.md, ../../references/rule-classification.md, ../../references/rule-content-contract.md, ../../references/confirmation-policy.md, ../../references/adapter-content-contract.md, and ../../references/adapters.json. Derive one to three task_terms from the current user source task and target scope (for example API, module, or feature names). If no concrete Init feature was named, use the source dimensions or module-role terms to be generated. Use one repeated --task-term <term> for each term. Save scan JSON in a system temporary file explicitly outside <project-root> so AI can read it during synthesis; use try/finally and Remove-Item after validation. In PowerShell: $scanResult = Join-Path ([IO.Path]::GetTempPath()) ('project-rules-scan-' + [guid]::NewGuid() + '.json'); try { python ../../scripts/scan_project.py <project-root> --task-term <term-1> --task-term <term-2> > $scanResult; Get-Content -Raw $scanResult; ... } finally { Remove-Item -LiteralPath $scanResult -Force -ErrorAction SilentlyContinue }. Use ../../scripts/inspect_symbol.py for material Python ownership. If a valid manifest v2 exists, stop and use project-rules-update.

Init workflow

  1. Scan read-only and build the bounded source-only context payload. Review existing rules and similar documents as candidate evidence, then produce a ranked source-candidate list; preserve sensitive paths as existence-only.
  2. Use the language analyzer to verify primary and comparable anchors, then trace representative code chains. Tools provide facts/candidates/conflicts; AI synthesizes evidence; humans decide substantive conflicts, strong constraints, and future direction.
  3. Create only anchored pattern cards and lightweight coverage statuses. AI must cite primary and comparable anchors before writing a repeated pattern. Do not import language defaults, documentation, or a single new file as a rule.
  4. Ask only when existing rules or similar documents clearly conflict with effective source/config evidence, express a strong constraint, or propose a future direction. Present those conflicts, constraints, and future-direction choices to the human. Weak evidence is pending or omitted; in all modes, leave unresolved claims out of canonical content.
  5. Show a compact preview and exact create / manual-only plan. Request one explicit write confirmation; review always precedes write.
  6. After approval, atomically write owned canonical files and adapters, manifest v2 last, then within that try run python ../../scripts/validate_outputs.py <project-root> --scan-result $scanResult; the finally cleanup runs after validation.

Read the full file on GitHub · 54 lines

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. 2mo ago First seen · 54 lines · 27 tokens per session scan A 38ea2fa64234

Subscribe to this mod's changes

project-rules-init is a skill published in the GitHub repository aigoooowork/project-rules-bootstrap (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 27 tokens to every session and 745 once invoked, about $0.0001 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 2026-08-31.

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