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.
npx skills add adamlinscott/claude-skills --skill brief-megit clone --depth 1 https://github.com/adamlinscott/claude-skillsWrote 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/skills/adamlinscott/claude-skills/brief-me)<a href="https://agentmods.dev/skills/adamlinscott/claude-skills/brief-me"><img src="https://agentmods.dev/badge/skills/adamlinscott/claude-skills/brief-me/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/skills/adamlinscott/claude-skills/brief-me"><img src="https://agentmods.dev/badge/skills/adamlinscott/claude-skills/brief-me.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 | $0.00126 | $0.01539 |
| Opus 5 | $0.00063 | $0.00770 |
| Sonnet 5 | $0.00025 | $0.00308 |
| Haiku 4.5 | $0.00013 | $0.00154 |
Grade A, and why
brief-me 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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brief Me
The user has come back to this session with weak or no memory of it. Reading the last message will not fix that: the last message was written for someone who was here five minutes ago. It leans on pronouns, on shorthand coined mid-session, and on file names introduced hours back. It continues the thread; it does not introduce it.
Produce one short briefing that puts them back in the chair. Then stop.
1. Check the state before you narrate
The failure mode of this skill is a fluent, confident, wrong story. Guard against it by reading the real state first, not your memory of it:
git statusandgit diff --statagainst the base branch — what is actually changed, and is anything half-applied?git logfor recent commits, and the current branch name.- Any plan, spec, or todo file written during this session, and the active todo list.
- Whether tests were run, and what they said.
Then hold two categories apart as you write. A claim backed by disk or git is stated flat. A claim recalled from the conversation and not checkable is marked as recalled, with the check named. Never assert a piece of work is finished without confirming the file exists.
2. The brief
Six headings, in this order. The whole thing fits on one screen.
In one line — the entire session in one sentence a stranger could follow.
What we're doing — the goal in plain terms, one or two sentences. This thread, not the codebase.
Where we got to — the arc so far. Up to five bullets. Completed work only.
Right now — the frozen frame. What is on disk this second. Say loudly if anything is half-applied or the working tree is incoherent; coming back to a partly-finished multi-file edit is the case that hurts most. Note when tests last ran and what happened.
Waiting on you — split three ways, dropping any that are empty:
- Decide — genuine decisions, each with your recommendation.
- Tell me — information you cannot find for yourself.
- Do — anything only they can perform: a login, a deploy, an approval.
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.
- today Changed · +1 tokens per session dd5c6a323022
- yesterday Changed · +4 tokens per session 9669d8dbf351
- 12d ago First seen · 127 lines · 121 tokens per session scan A b425953bc77c
brief-me is a skill published in the GitHub repository adamlinscott/claude-skills (3 stars, last pushed today), licensed MIT. It adds 126 tokens to every session and 1,539 once invoked, about $0.0006 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.
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