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 anton-abyzov/specweave --skill handoffgit clone --depth 1 https://github.com/anton-abyzov/specweaveWrote 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/anton-abyzov/specweave/handoff)<a href="https://agentmods.dev/skills/anton-abyzov/specweave/handoff"><img src="https://agentmods.dev/badge/skills/anton-abyzov/specweave/handoff.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 31 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
- medium Agent Snooping · line 41 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
- medium MCP Rug Pull · line 41 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00044 | $0.00674 |
| Opus 5 | $0.00022 | $0.00337 |
| Sonnet 5 | $0.00009 | $0.00135 |
| Haiku 4.5 | $0.00004 | $0.00067 |
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 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.
How it starts
The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Work Handoff (Cross-Tool)
No tool can read another's transcript. The portable thing is a ≤1-page
handoff.md next to the increment, built from durable state (ledger fold,
spec ACs, decisions, git diff) — any agent from any vendor resumes from it.
Steps
-
Release your claims (rule 5):
specweave task release --all-mine. -
Write the doc, adding only what the files cannot know:
specweave handoff [incrementId] [--reason "…"] [--summary "…"] [--next "…"] [--gotcha "…"] [--decision "…"] [--inline]- id optional when exactly one increment is
active; 2+ active → the CLI lists candidates, re-run with one. --inlineembeds the full body in the paste prompt (moving machines).- No SpecWeave workspace / no active increment → a git + notes handoff still gets written.
- id optional when exactly one increment is
-
Surface the CLI output verbatim: doc path first, then the
.diffpath, then the fenced paste prompt.
What is written
.specweave/increments/<id>/handoff.md(+handoff.diffwith the full uncommitted diff) — the single location;.specweave/state/handoff-latest.txtpoints at it.- Sections: Where I left off · Done / Pending (ledger table) · Decisions · Files touched · Next steps · Resume, ending with the
Doc format v2marker. Header line = agent id, branch @ sha, uncommitted count, redaction count, active claims. The doc format is specified once, in the standalonesw-handoffskill (skills/sw-handoff/SKILL.md) — read it there when writing or checking a handoff by hand. - Secrets are scrubbed heuristically — review before sharing. Nothing is committed for you; commit
handoff.mdif the next agent works from another clone.
Resuming from a handoff
Read handoff.md → specweave task next <id> → claim → go. If the path does not exist on this machine, ask for the doc to be pasted; do not improvise context.
Related
specweave status— where things stand, without writing a handoff. PreCompact hook writes the same doc automatically.skills/sw-handoff/SKILL.md— the standalone, CLI-less version (vskill:npx vskill install anton-abyzov/specweave/sw-handoff) and the single source of truth for the document format.
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.
- 4d ago First seen · 42 lines · 44 tokens per session scan A f1f0fd1a35f3
handoff is a skill published in the GitHub repository anton-abyzov/specweave (160 stars, last pushed yesterday), licensed MIT. It adds 44 tokens to every session and 674 once invoked, about $0.0002 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 2026-09-03.
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