house-rules

house-rules is a skill for Claude Code, Codex from alphabravo-oss/guild. It costs 48 tokens per session (3,626 once invoked), scanned A, original, MIT.

A set of rules for writing and checking documentation, including evidence requirements, uncertainty labels, voice rules, and release checks.

In plain words
What is it for?
It is for drafting or auditing documentation pages before they are published.
Why use it?
It helps ensure that claims about product behaviour are supported by source code, tests, commands, or what the user can see.

Skill for Claude CodeCodex

Part of the webster plugin — 11 skills, 6 agents shipped together

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 skills/alphabravo-oss/guild/house-rules
Any agent
npx skills add alphabravo-oss/guild --skill house-rules
Clone the repo
git clone --depth 1 https://github.com/alphabravo-oss/guild

Made for: Claude Code, Codex.

Or install webster, the plugin that ships this one along with the rest of its 11 skills, 6 agents.

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 house-rules

README.md
[![agentmods](https://agentmods.dev/badge/skills/alphabravo-oss/guild/house-rules.svg)](https://agentmods.dev/skills/alphabravo-oss/guild/house-rules)
Your own site
<a href="https://agentmods.dev/skills/alphabravo-oss/guild/house-rules"><img src="https://agentmods.dev/badge/skills/alphabravo-oss/guild/house-rules.svg" alt="Measured on agentmods" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,626 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 $0.00048 $0.03626
Opus 5 $0.00024 $0.01813
Sonnet 5 $0.00010 $0.00725
Haiku 4.5 $0.00005 $0.00363

Measured yesterday against content hash 4f5842e1c372, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

house-rules 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 yesterday.

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/webster/skills/house-rules/SKILL.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

House rules

The four plugins this replaces could all write documentation. None of them could tell you which sentences were true. These are the rules that close that gap.


1. The governing rule

A sentence about behaviour needs a source, or it needs a tag. There is no third option and no exemption for sentences that are obviously true.

A source is one of:

  • a file:line anchor that resolves in the current tree
  • a command plus the output it actually produced
  • a named test that covers the behaviour
  • the screen, for a claim about what a reader sees. "The Deployments page has a New button" is checked by looking at it, and the anchor is the component that renders it or a screenshot in the page. This class exists because without it every sentence on a user page has to be justified against source code, and a writer who spends the day in source writes about source. survey.py returns the product's own on-screen wording under user_surface

Write the anchor down as you go. Reconstructing sources afterwards does not work, because by then you no longer remember which sentences you checked and which ones you assumed.

2. Working notation, and where it stops

While drafting, mark what you have not verified. Four tags, borrowed from HADS:

[SPEC]   Authoritative. Sourced. Terse.
[NOTE]   Human context, history, reasoning. Not a behavioural claim.
[BUG]    A verified failure. Requires symptom, cause, fix.
[?]      Inferred, not verified. Says what would settle it.

None of it ships. These tags are for the draft and for the plan. A reader who opens a product's documentation and finds [?] in the middle of a sentence is being shown the tooling that produced the page, and no product does that.

The honesty the tag carries is not optional, only the notation is. Before publishing, every [?] resolves one of three ways:

  1. Go and check it. Then it is a plain sentence.
  2. Say it in ordinary words. "This has not been tested against a live server" is honest, readable, and belongs on the page.
  3. Cut the sentence. Silence is better than a claim nobody stands behind.

Read the full file on GitHub · 273 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. yesterday First seen · 273 lines · 48 tokens per session scan A 4f5842e1c372

Subscribe to this mod's changes

house-rules is a skill published in the GitHub repository alphabravo-oss/guild (2 stars, last pushed 3d ago), licensed MIT. It adds 48 tokens to every session and 3,626 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 2026-09-04.

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