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 Stijnman/grok-custom-skills --skill session-handoff-packagergit clone --depth 1 https://github.com/Stijnman/grok-custom-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/stijnman/grok-custom-skills/session-handoff-packager)<a href="https://agentmods.dev/skills/stijnman/grok-custom-skills/session-handoff-packager"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/session-handoff-packager/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/stijnman/grok-custom-skills/session-handoff-packager"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/session-handoff-packager.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 | $0.00036 | $0.00484 |
| Opus 5 | $0.00018 | $0.00242 |
| Sonnet 5 | $0.00007 | $0.00097 |
| Haiku 4.5 | $0.00004 | $0.00048 |
Grade A, and why
session-handoff-packager 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 9d 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
Session Handoff Packager
When to Use
- User says session summary or task matches this capability
- User says handoff or task matches this capability
- User says save what we did or task matches this capability
- User says continue next time or task matches this capability
Workflow
- List: repos explored, commands run, files created/changed, key findings.
- Note open items and recommended next steps.
- Run privacy-redactor on content before any external share.
- Write session-handoff.md to workspace (local only by default).
- Do not include secrets, tokens, or raw PII in handoff.
Integrations
privacy-redactorai-share-extractor-v4goal-verifier
Error Handling
| Failure | Response |
|---|---|
| Workspace not writable | Output handoff in chat only. |
Gotchas
- Default is local file only; upload requires separate user request.
Safety & Ethics (Publication-Ready)
This skill is designed for public distribution. Constraints:
- PII redaction before share; secrets never included.
- Handoff stays in user workspace unless explicitly shared.
- Read-only summary of past actions; no new destructive operations.
Prohibited actions
- No unauthorized access, malware, or harmful automation
- No silent exfiltration of data, credentials, or telemetry
- No destructive system changes without hitl-approver
- No publication of user PII or environment secrets in outputs
Example
Input: User request matching triggers above. Output: Structured result per workflow; local artifacts only unless user opts in.
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.
- 9d ago First seen · 65 lines · 36 tokens per session scan A 5e5183edb6e0
session-handoff-packager is a skill published in the GitHub repository Stijnman/grok-custom-skills (9 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 484 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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