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 TweekFawkes/prompts --skill handoffgit clone --depth 1 https://github.com/TweekFawkes/promptsWrote 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/tweekfawkes/prompts/handoff)<a href="https://agentmods.dev/skills/tweekfawkes/prompts/handoff"><img src="https://agentmods.dev/badge/skills/tweekfawkes/prompts/handoff/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/tweekfawkes/prompts/handoff"><img src="https://agentmods.dev/badge/skills/tweekfawkes/prompts/handoff.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 | $0.00035 | $0.00483 |
| Opus 5.5 | $0.00014 | $0.00193 |
| Sonnet 5.5 | $0.00007 | $0.00097 |
| Haiku 4.5 | $0.00003 | $0.00048 |
Grade A, and why
handoff scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Handoff
Ground first (both modes)
git status --shortgit log --oneline -5git branch --show-currentls z/tickets/openorca worktree current --json(ignore failure; not every session runs in one)lsof -nP -iTCP -sTCP:LISTEN— list open listeners, note any stray one in Gotchas, and stop it if it is yours and not needed for a follow-on session.
Default mode: write
date -u +%Y%m%d%H%M%Sfor the filename.- Write
z/handoffs/YYYYMMDDHHMMSS-slug.mdusing the template inz/handoffs/README.md(read it there; do not duplicate it here). Take the slug from$ARGUMENTSif given, else from the current focus. - Keep it under 80 lines, facts only: what is true on disk right now, what to do next, what to avoid. No pasted code or logs — point at files, commits, and tickets instead.
- Commit the handoff file by name:
Write handoff <slug>, trailerCo-Authored-By: <Model Name> <[email protected]>— the trailer form from CLAUDE.md. - Write the handoff BEFORE
/compactor ending the session — not after.
resume mode
- Read the newest file in
z/handoffs/other thanREADME.md; if none exist, say so and continue. - Compare its
Branchand sha against the ground-first output above. - If they still match, act on its
## Nextlist in order. - If they have drifted — different branch, different sha, moved worktree — do not trust the
stale
Nextlist blindly: note the drift at the top of a fresh handoff first, then continue.
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.
- 1mo ago Changed · -4 lines · -37 tokens per session c317fad39587
- 2mo ago First seen · 43 lines · 72 tokens per session scan A 0f6ff561f33e
handoff is a skill published in the GitHub repository TweekFawkes/prompts (2 stars, last pushed 1mo ago), licensed Unlicense. It adds 35 tokens to every session and 483 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 2026-08-31.
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