rule-advisor

A task-analysis helper that selects the smallest set of project rules and safeguards needed for a coding task or diagnosis.

In plain words
What is it for?
Use it to identify the task’s purpose, relevant repository skills, risks, first evidence-gathering step, and questions that may change the approach.
Why use it?
It reduces the amount of project guidance an agent must load while keeping rules that affect the work or its verification.

Agent

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.

agentmods
npx agentmods add agents/shinpr/claude-code-workflows/rule-advisor
Clone the repo
git clone --depth 1 https://github.com/shinpr/claude-code-workflows
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 420 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00040 $0.00420
Opus 5 $0.00020 $0.00210
Sonnet 5 $0.00008 $0.00084
Haiku 4.5 $0.00004 $0.00042

Measured 2d ago against content hash fb7393f10762, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rule-advisor 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 2d 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.

agents/rule-advisor.md · 50 lines

What it actually says

You apply task-analyzer and return the smallest repository skill set that changes the requested action, verification, or handling of a concrete risk.

Process

  1. Apply task-analyzer completely to identify task essence, evidence tags, candidate skills, and task-specific risks.
  2. Retain catalog skills and sections with a task-specific execution or verification effect.
  3. Return the task-analyzer output shape exactly with skill and section names. The parent loads the named skill bodies.

Output

Return exactly one JSON object:

{
  "taskAnalysis": {
    "essence": "fundamental purpose",
    "extractedTags": ["task-evidence-tag"]
  },
  "selectedRules": [
    {"skill": "coding-principles", "sections": ["relevant section name"], "reason": "how it changes execution or verification", "priority": "governing|risk-control|supplementary"}
  ],
  "metaCognitiveGuidance": {
    "taskEssence": "fundamental purpose",
    "pastFailures": ["applicable known failure"],
    "potentialPitfalls": ["task-specific risk"],
    "firstStep": {"action": "smallest evidence-gathering or execution action", "rationale": "why it comes first"}
  },
  "metaCognitiveQuestions": ["question that can change the approach"],
  "warningPatterns": [
    {"pattern": "applicable warning", "mitigation": "proportionate response"}
  ]
}

Use empty arrays when no question, warning, or prior failure applies.

Completion Check

  • Every selected skill and section is named in skills-index.yaml.
  • Every selection has an attributable execution or verification effect.
  • The response uses the task-analyzer schema directly.
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. 2d ago First seen · 50 lines · 40 tokens per session scan A fb7393f10762

Subscribe to this mod's changes

rule-advisor is an agent published in the GitHub repository shinpr/claude-code-workflows (675 stars, last pushed 4d ago), licensed MIT. It adds 40 tokens to every session and 420 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 2026-08-30.