Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/hoblin/claude-ruby-marketplacenpx agentmods add skills/hoblin/claude-ruby-marketplace/create_handoffWrote 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/hoblin/claude-ruby-marketplace/create_handoff)<a href="https://agentmods.dev/skills/hoblin/claude-ruby-marketplace/create_handoff"><img src="https://agentmods.dev/badge/skills/hoblin/claude-ruby-marketplace/create_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/hoblin/claude-ruby-marketplace/create_handoff"><img src="https://agentmods.dev/badge/skills/hoblin/claude-ruby-marketplace/create_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 | $0.00010 | $0.01132 |
| Opus 5 | $0.00005 | $0.00566 |
| Sonnet 5 | $0.00002 | $0.00226 |
| Haiku 4.5 | $0.00001 | $0.00113 |
Grade A, and why
create_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 yesterday.
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 — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create Handoff
You are tasked with writing a handoff document to hand off your work to another agent in a new session. You will create a handoff document that is thorough, but also concise. The goal is to compact and summarize your context without losing any of the key details of what you're working on.
Process
1. Gather Metadata
Run spec-metadata (in the PATH) to get date, time, git commit, branch, and repository name.
2. Filepath & Naming
Create your file under ./thoughts/shared/handoffs/ENG-XXXX/YYYY-MM-DD/HH-MM-SS_ENG-ZZZZ_description.md, where:
- YYYY-MM-DD is today's date
- HH-MM-SS is the current time in 24-hour format
- ENG-XXXX is the ticket number (replace with
generalif no ticket) - ENG-ZZZZ is the ticket number (omit if no ticket)
- description is a brief kebab-case description
Examples:
- With ticket:
2025-01-08/13-55-22_ENG-XXXX_create-context-compaction.md - Without ticket:
2025-01-08/13-55-22_create-context-compaction.md
3. Handoff writing
using the above conventions, write your document. use the defined filepath, and the following YAML frontmatter pattern. Use the metadata gathered in step 1, Structure the document with YAML frontmatter followed by content:
Use the following template structure:
---
date: [Current date and time with timezone in ISO format]
researcher: [Researcher name from thoughts status]
git_commit: [Current commit hash]
branch: [Current branch name]
repository: [Repository name]
topic: "[Feature/Task Name] Implementation Strategy"
tags: [implementation, strategy, relevant-component-names]
status: complete
last_updated: [Current date in YYYY-MM-DD format]
last_updated_by: [Researcher name]
type: implementation_strategy
---
# Handoff: ENG-XXXX {very concise description}
## Task(s)
{description of the task(s) that you were working on, along with the status of each (completed, work in progress, planned/discussed). If you are working on an implementation plan, make sure to call out which phase you are on. Make sure to reference the plan document and/or research document(s) you are working from that were provided to you at the beginning of the session, if applicable.}
## Critical References
{List any critical specification documents, architectural decisions, or design docs that must be followed. Include only 2-3 most important file paths. Leave blank if none.}
## Recent changes
{describe recent changes made to the codebase that you made in line:file syntax}
## Learnings
{describe important things that you learned - e.g. patterns, root causes of bugs, or other important pieces of information someone that is picking up your work after you should know. consider listing explicit file paths.}
## Artifacts
{ an exhaustive list of artifacts you produced or updated as filepaths and/or file:line references - e.g. paths to feature documents, implementation plans, etc that should be read in order to resume your work.}
## Action Items & Next Steps
{ a list of action items and next steps for the next agent to accomplish based on your tasks and their statuses}
## Other Notes
{ other notes, references, or useful information - e.g. where relevant sections of the codebase are, where relevant documents are, or other important things you leanrned that you want to pass on but that don't fall into the above categories}
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.
- yesterday First seen · 98 lines · 10 tokens per session scan A 04d8cc2b9b82
create_handoff is a skill published in the GitHub repository hoblin/claude-ruby-marketplace (37 stars, last pushed yesterday), licensed MIT. It adds 10 tokens to every session and 1,132 once invoked, about $0.0001 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 2026-09-07.
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