summary

summary is a skill for Claude Code, Codex from brsbl/ottonomous. It costs 99 tokens per session (1,984 once invoked), scanned A, original, MIT.

A tool for turning code changes into a short decision brief for reviewers. It explains the problem, result, trade-offs, platform effects, and supporting evidence.

In plain words
What is it for?
Use it for pull-request summaries, release notes, branch or diff overviews, implementation handoffs, and explanations of what changed and why.
Why use it?
It helps reviewers understand why a change matters without reading all the code. It also keeps the reasoning behind a change available for later reference.

Skill for Claude CodeCodex

Part of the ottonomous plugin — 3 skills, 4 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/brsbl/ottonomous/summary
Any agent
npx skills add brsbl/ottonomous --skill summary
Clone the repo
git clone --depth 1 https://github.com/brsbl/ottonomous

Made for: Claude Code, Codex.

Or install ottonomous, the plugin that ships this one along with the rest of its 3 skills, 4 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 summary

README.md
[![agentmods](https://agentmods.dev/badge/skills/brsbl/ottonomous/summary.svg)](https://agentmods.dev/skills/brsbl/ottonomous/summary)
Your own site
<a href="https://agentmods.dev/skills/brsbl/ottonomous/summary"><img src="https://agentmods.dev/badge/skills/brsbl/ottonomous/summary.svg" alt="Measured on agentmods" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,984 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 $0.00099 $0.01984
Opus 5 $0.00049 $0.00992
Sonnet 5 $0.00020 $0.00397
Haiku 4.5 $0.00010 $0.00198

Measured 4d ago against content hash 0015732704b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

summary 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 4d 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.

plugins/ottonomous/skills/summary/SKILL.md · 181 lines

How it starts

The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Summary

Turn a code change into a durable Moss decision brief that lets a reviewer align on the problem first, then judge the outcome, trade-offs, platform implications, and evidence without reading the code.

1. Resolve the change and its evidence

Use an explicit pull request, branch, commit range, supplied diff, or file set when the caller names one. Otherwise infer the review target from the active context in this order:

  1. the pull request associated with the current session or branch;
  2. the current branch against its repository-resolved merge base;
  3. staged or unstaged changes only when the request clearly refers to the current uncommitted work.

Do not ask the caller for a repository path when the active working directory, thread, or pull-request metadata already identifies the source. Ask a concise question only when there is no inspectable change or more than one plausible target. Never assume main is the merge base when repository or pull-request metadata can identify it.

Identify the evidence that frames the review:

  • Problem evidence: pull-request description, linked issue or spec, commit intent, user report, or explicit caller context
  • Review lens: optional product, release, risk, or handoff emphasis
  • Delivery: use an exact caller-supplied destination when present; return the complete summary in chat only when the caller explicitly requests inline output; otherwise create a canonical workspace note at ~/Moss/Notes/<Title>/<Title>.md and return its link

For a default workspace note, choose a concise descriptive title and keep the directory and Markdown filename identical. If that path already belongs to an unrelated note, choose a collision-safe title rather than overwriting it. Create only the note directory and Markdown file; do not create Moss-owned sidecars.

Lack of an authoritative problem statement is not a reason to ask for storage or workflow setup. Infer the most defensible problem from the available evidence and label it as inferred. The visible default workspace note is the only implicit artifact. Never invent a summary registry, hidden state, duplicate HTML file, sidecar, symlink, or resumable workflow record.

Read the full file on GitHub · 181 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 181 lines · 99 tokens per session scan A 0015732704b8

Subscribe to this mod's changes

summary is a skill published in the GitHub repository brsbl/ottonomous (15 stars, last pushed 10d ago), licensed MIT. It adds 99 tokens to every session and 1,984 once invoked, about $0.0005 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.

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