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 agentmods add skills/billbuchanan-code/claude-code-power-setup/handoffnpx skills add billbuchanan-code/claude-code-power-setup --skill handoffgit clone --depth 1 https://github.com/billbuchanan-code/claude-code-power-setupWhat 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 | $0.00015 | $0.00955 |
| Opus 5 | $0.00008 | $0.00477 |
| Sonnet 5 | $0.00003 | $0.00191 |
| Haiku 4.5 | $0.00002 | $0.00096 |
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 2d 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 — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Handoff Document Generator
Generate a comprehensive HANDOFF.md that captures the full session state so a new Claude Code session can pick up exactly where this one left off.
Process
Step 1: Gather Session State
Run the following in parallel to collect information:
- Recent git history: Run
git log --oneline -20andgit log --stat -5to see what was committed recently. - Uncommitted work: Run
git statusandgit diff --statto find uncommitted changes. If there are staged changes, also rungit diff --cached --stat. - Branch info: Run
git branch --show-currentandgit log --oneline origin/main..HEAD 2>/dev/null || git log --oneline main..HEAD 2>/dev/nullto understand branch state relative to main. - TODOs in changed files: For each file shown in
git diff --name-onlyandgit diff --cached --name-only, search for TODO, FIXME, HACK, and XXX comments using Grep. - Recent file modifications: Run
git diff --name-only HEAD~5..HEAD 2>/dev/nullto get files changed in recent commits.
Step 2: Infer Session Context
From the gathered data, determine:
- What the user was working on: Infer the goal from commit messages, changed files, and branch name.
- What was completed: Identify finished work from commits and their messages.
- What is in progress: Identify from uncommitted changes and TODOs.
- What patterns/decisions are visible: Look at the nature of changes (new files vs edits, test files, config changes) to infer architectural decisions.
Step 3: Write HANDOFF.md
Write a file called HANDOFF.md in the current working directory with this structure:
# Session Handoff
_Generated: [current date/time]_
_Branch: [branch name]_
_Repository: [repo root directory name]_
## Goal
[One or two sentences describing what the user was trying to accomplish, inferred from commits, branch name, and changes.]
## Progress
[Bulleted list of what was completed, with file paths. Group by logical unit of work.]
- Completed [description] (`path/to/file`)
- Completed [description] (`path/to/file`)
## Current State
- **Branch**: `[branch]` ([N commits ahead of main / or state])
- **Uncommitted changes**: [Yes/No - if yes, list files]
- **Staged changes**: [Yes/No - if yes, list files]
- **Build/test status**: [If inferable from recent commits or files]
## Attempted Solutions
[If visible from git history - reverts, multiple commits touching the same file, or FIXME comments suggesting something was tried. If nothing is apparent, write "No failed attempts visible in git history."]
## Next Steps
[Inferred from TODOs, FIXMEs, uncommitted work, and incomplete patterns. Be specific.]
1. [Next step with file path if applicable]
2. [Next step]
## Key Decisions
[Architectural or design decisions visible from the changes - new dependencies added, patterns chosen, file structure decisions, etc. If not clearly visible, note "Review commits for context."]
## Files Changed
### Recent Commits
[List from git log --stat, grouped by commit]
### Uncommitted
[List from git status]
## Open Questions
[Any ambiguities: TODO comments without resolution, inconsistent patterns, half-finished migrations, etc. If none, write "None identified."]
---
_To continue this work, paste this file's contents at the start of a new Claude Code session._
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.
- 2d ago First seen · 103 lines · 15 tokens per session scan A 0bc7a26001ff
handoff is a skill published in the GitHub repository billbuchanan-code/claude-code-power-setup (2 stars, last pushed 1mo ago), licensed MIT. It adds 15 tokens to every session and 955 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 2026-08-31.
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