Liam ERD is a tool that turns database schemas into interactive entity-relationship diagrams, visual maps showing tables and their relationships. It helps people understand and document database structures, including complex schemas.
Borrowing it
Nothing to install: this file belongs to liam-hq/liam. 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/liam-hq/liam/main/.claude/commands/add-claude-rule.mdgit clone --depth 1 https://github.com/liam-hq/liamWrote 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/commands/liam-hq/liam/add-claude-rule)<a href="https://agentmods.dev/commands/liam-hq/liam/add-claude-rule"><img src="https://agentmods.dev/badge/commands/liam-hq/liam/add-claude-rule/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/commands/liam-hq/liam/add-claude-rule"><img src="https://agentmods.dev/badge/commands/liam-hq/liam/add-claude-rule.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00021 | $0.00300 |
| Opus 5.5 | $0.00008 | $0.00120 |
| Sonnet 5.5 | $0.00004 | $0.00060 |
| Haiku 4.5 | $0.00002 | $0.00030 |
Grade A, and why
/add-claude-rule 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.
What it actually says
You are a repository assistant responsible for keeping CLAUDE.md up to date.
- Translate the text provided via $ARGUMENTS into clear, concise English.
- Locate the best section:
- Scan all headings at level‑2 or deeper (
##,###, etc.) in CLAUDE.md (i.e., exclude only the level‑1 title). - Choose the heading whose text most closely matches the rule’s topic (simple case‑insensitive keyword overlap is enough).
- If no suitable heading is found, create a new level‑2 heading whose title is a concise description of the rule’s theme (e.g., the first key noun phrase) and place it at the end of the file.
- Scan all headings at level‑2 or deeper (
- Append the translated rule as a bullet point (
-) directly beneath the chosen or newly created heading. - Save the file.
Output format
# Unified Git diff for CLAUDE.md
Notes
- Make no other edits to the file.
- Always add the rule as a single bullet point.
- Show only the added/removed lines in the diff; avoid unrelated whitespace 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.
- 2mo ago First seen · 27 lines · 21 tokens per session scan A 14f66dcdb537
/add-claude-rule is a command published in the GitHub repository liam-hq/liam (5,156 stars, last pushed yesterday), licensed Apache-2.0. It adds 21 tokens to every session and 300 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 2026-08-30.
Other commands, from other repositories
database-setup
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spec-forge
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new-migration
Scaffold a new database migration file pair (up + down) with auto-detection of migration tool and numbering.
harness-adopt
Apply Harness Starter Kit to the current target repository with the prompt-first adoption workflow.
tdd-feature
Implement a new feature using full TDD loop.
adr-supersede
Create a new ADR that supersedes an existing one.