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 MithunWijayasiri/dotclaude --skill handoff-sessiongit clone --depth 1 https://github.com/MithunWijayasiri/dotclaudeWrote 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/mithunwijayasiri/dotclaude/handoff-session)<a href="https://agentmods.dev/skills/mithunwijayasiri/dotclaude/handoff-session"><img src="https://agentmods.dev/badge/skills/mithunwijayasiri/dotclaude/handoff-session/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/mithunwijayasiri/dotclaude/handoff-session"><img src="https://agentmods.dev/badge/skills/mithunwijayasiri/dotclaude/handoff-session.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 | $0.00038 | $0.00462 |
| Opus 5.5 | $0.00015 | $0.00185 |
| Sonnet 5.5 | $0.00008 | $0.00092 |
| Haiku 4.5 | $0.00004 | $0.00046 |
Grade A, and why
handoff-session 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.
What it actually says
Summarise this conversation for a fresh agent to continue. Save to ~/Downloads/ with a descriptive hyphenated filename, like handoff-TICKETID.md or handoff-topic.md. If that name already exists, append a timestamp instead of overwriting. If the folder is missing or unwritable, ask for another destination. Report the saved path.
Link to existing artifacts (PRDs, plans, ADRs, issues, commits, diffs) instead of copying their content.
Keep the doc compact by excluding:
- Exploratory questions ("how does X work?", "explain this code")
- Cancelled or abandoned work — branches, experiments, approaches that were started but dropped
- Dead-end debugging — investigation paths that led nowhere
- Failed attempts — exclude them unless they explain the current state, reveal a constraint, or prevent repeating the same path
- Tool/command usage details — focus on results, not mechanics
- Fully resolved issues — exclude them unless the resolution affects future work
- Off-topic tangents — side discussions unrelated to the main work
- Redundant iterations — multiple rounds of the same fix/tweak
Use this structure:
Handoff: [Topic]
Context
[1-2 sentences on what we were working on]
Current State
[What's working, what's broken, what's in progress]
- Mark assumptions and unverified claims explicitly.
- Record the latest validation status, including failures and checks not run.
Blockers
[Anything stopping progress]
Decisions Made
[Key choices — architectural, trade-offs accepted]
Next Steps
[Prioritized list of concrete actions, including dependencies or conditions when a step cannot start immediately]
Open Questions
[Unresolved decisions for the next agent]
Key Files
[Relevant file paths]
Redact any sensitive information, such as API keys, passwords, or personally identifiable information.
If the user passed arguments, treat them as a description of what the next session will focus on and tailor the doc accordingly.
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.
- 10d ago Changed · +18 tokens per session dc6a3ad25019
- 17d ago Changed · -8 lines · -16 tokens per session 35eeb9fb40c8
- 1mo ago First seen · 60 lines · 36 tokens per session scan A 175be7cce1f1
handoff-session is a skill published in the GitHub repository MithunWijayasiri/dotclaude (4 stars, last pushed 6d ago), licensed MIT. It adds 38 tokens to every session and 462 once invoked, about $0.0002 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 2026-09-13.
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