A session record that loads earlier work when a coding session starts and saves the current context when it ends.

It helps resume paused work, track tasks, carry forward decisions, and preserve useful project notes.

It reduces the need to reconstruct what was being worked on after an interruption or when returning later.

handoff — Skill for Claude Code and Codex by alphaelements: A session record that loads earlier work when a…

Install

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.

agentmods

npx agentmods add skills/alphaelements/handoff-mcp/handoff

Any agent

npx skills add alphaelements/handoff-mcp --skill handoff

Clone the repo

git clone --depth 1 https://github.com/alphaelements/handoff-mcp

Made for: Claude Code, Codex.

Or install handoff-mcp, the plugin that ships this one along with the rest of its 6 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/alphaelements/handoff-mcp/handoff.svg)](https://agentmods.dev/skills/alphaelements/handoff-mcp/handoff)

Your own site

<a href="https://agentmods.dev/skills/alphaelements/handoff-mcp/handoff"><img src="https://agentmods.dev/badge/skills/alphaelements/handoff-mcp/handoff.svg" alt="Measured on agentmods" height="20"></a>

Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,730 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00061	$0.04730
Opus 5	$0.00030	$0.02365
Sonnet 5	$0.00012	$0.00946
Haiku 4.5	$0.00006	$0.00473

Measured 3d ago against content hash f1892ef04fb3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 3d 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.

plugin/skills/handoff/SKILL.md · 337 lines

How it starts

The opening of the file, as written. The whole thing — 337 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Handoff Skill

Session Start

Call handoff_load_context (uses current working directory).
If the project is not initialized, call handoff_init with the project name derived from the directory name.
If paused_sessions are returned, show them to the user (ID, summary, branch). To resume: handoff_load_context(session_id: "s-..."). To discard: handoff_save_context(close_session_id: "s-...").
Establish an active session immediately — if session_guidance is present in the response (meaning no active session exists), call handoff_save_context with session_status: "active" before starting any work. Include inherited context from the previous session:
- summary: use session_guidance.suggested_fields.summary or write your own based on the previous session's summary
- decisions, context_pointers, references: carry forward from session_guidance.suggested_fields if available
- handoff_notes: at minimum, a suggestion noting what you plan to do
- checklist: at minimum, one item noting session establishment This ensures that if the conversation is interrupted, the session state (what was being worked on, inherited decisions, file pointers) survives.
Review the returned context:
- Suggestions first: suggestion handoff_notes (from current session or previous_session) are the previous session's recommended next actions. Unless the user's request contradicts them, start executing from the first suggestion — do NOT re-verify work that the suggestion says is already done.
- Tasks: check in_progress and blocked items first.
- Decisions: note confidence levels — unverified items may need revisiting.
- Blockers: address these before starting new work.
- Handoff notes: pay attention to caution items.
- Context pointers: read these to rebuild mental context, but do NOT re-run tests or checks that the previous session already confirmed unless there are new changes since that session's commit.
Briefly summarize the current state to the user and start working immediately from the suggestion — do not repeat completed verification.

Read the full file on GitHub · 337 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

agents/openai.yaml 396 B

Changes

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.

3d ago First seen · 337 lines · 61 tokens per session scan A f1892ef04fb3

Subscribe to this mod's changes

handoff is a skill published in the GitHub repository alphaelements/handoff-mcp (0 stars, last pushed 5d ago), licensed MIT. It adds 61 tokens to every session and 4,730 once invoked, about $0.0003 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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