ashlr-genome-author

ashlr-genome-author is a skill for Claude Code from ashlrai/ashlr-plugin. It costs 56 tokens per session (504 once invoked), scanned A, original, MIT.

A workflow guide for keeping a project's genome accurate. A project genome is a maintained summary of important architectural decisions and structure.

In plain words
What is it for?
Use it after adding modules, changing schemas, authentication, routes, or architecture to propose concise updates with reasons and file locations.
Why use it?
It prevents important changes from being forgotten while avoiding unnecessary notes about routine edits.

Skill for Claude Code

Written for Claude Code: SessionEnd hook event.

Part of the ashlr plugin — 11 skills, 36 commands, 5 agents, 7 hooks, 1 MCP server shipped together

Good fit Use it after adding modules, changing schemas, authentication, routes, or architecture to propose concise updates with reasons and file locations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ashlrai/ashlr-plugin/ashlr-genome-author
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 ashlrai/ashlr-plugin --skill ashlr-genome-author
Clone the repo
git clone --depth 1 https://github.com/ashlrai/ashlr-plugin

Made for: Claude Code.

Or install ashlr, the plugin that ships this one along with the rest of its 11 skills, 36 commands, 5 agents, 7 hooks, 1 MCP server.

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 ashlr-genome-author

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashlrai/ashlr-plugin/ashlr-genome-author/github.svg)](https://agentmods.dev/skills/ashlrai/ashlr-plugin/ashlr-genome-author)
Your own site
<a href="https://agentmods.dev/skills/ashlrai/ashlr-plugin/ashlr-genome-author"><img src="https://agentmods.dev/badge/skills/ashlrai/ashlr-plugin/ashlr-genome-author/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.

agentmods 80×15 button for ashlr-genome-author

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashlrai/ashlr-plugin/ashlr-genome-author"><img src="https://agentmods.dev/badge/skills/ashlrai/ashlr-plugin/ashlr-genome-author.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 504 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 $0.00056 $0.00504
Opus 5 $0.00028 $0.00252
Sonnet 5 $0.00011 $0.00101
Haiku 4.5 $0.00006 $0.00050

Measured 10d ago against content hash aa5ef83d4c0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ashlr-genome-author 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 10d 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/ashlr-genome-author/SKILL.md · 44 lines

What it actually says

Ashlr Genome Author

The genome is the project's living architectural memory. ashlr__genome_propose adds new knowledge to it. This skill governs when and how to call it so the genome stays signal-rich.

When to call ashlr__genome_propose

Call it after:

  • A new module is added — new file(s) that introduce a concept, service, or subsystem not previously in the genome.
  • A schema change — database table added/dropped/migrated, or a core TypeScript interface redefined.
  • An auth or security change — new middleware, permission model, token strategy, or RLS policy.
  • A routing change — new API endpoint, route group, or server registered.
  • An architectural decision — choosing a pattern, library, or data model that future contributors need to understand.

Summary format

Write a 2–5 sentence past-tense summary that describes:

  1. What was changed or added.
  2. Why (the intent or problem it solves).
  3. Where: end with the relevant file paths.

Example:

"Added hooks/stop-accounting.ts to finalize session stats on the Stop event. This complements the existing SessionEnd GC path with an idempotency guard so duplicate entries are never written. Files: hooks/stop-accounting.ts, hooks/hooks.json."

When NOT to call ashlr__genome_propose

  • Routine edits (bug fixes, typo corrections, test updates) that don't change the architecture.
  • Edits to files already well-described in the genome with no structural change.
  • Mid-task (wait until the change is complete and stable).
  • More than once per logical change — one proposal per architectural event.

Section names

Use existing manifest section names when the change belongs to an existing area. Only introduce a new section name when the change is genuinely a new architectural concept.

Activation

Enable via /ashlr-genome-author on or by writing {"enabled":true} to ~/.ashlr/genome-author.json. Toggle off with /ashlr-genome-author off.

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. 10d ago First seen · 44 lines · 56 tokens per session scan A aa5ef83d4c0a

Subscribe to this mod's changes

ashlr-genome-author is a skill published in the GitHub repository ashlrai/ashlr-plugin (3 stars, last pushed 3d ago), licensed MIT. It adds 56 tokens to every session and 504 once invoked, about $0.0003 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.