handoff

A session handoff note that records the current state of a coding project for the next AI session.

In plain words
What is it for?
Use it before stopping complex implementation, migration, or debugging work, or when continuing in a new chat.
Why use it?
Long coding sessions can lose important context when they are paused or shortened. This preserves decisions, unfinished work, constraints, and the next action.

Skill for Claude CodeCodex

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/fusebase-dev/fusebase-flow/handoff
Any agent
npx skills add fusebase-dev/fusebase-flow --skill handoff
Clone the repo
git clone --depth 1 https://github.com/fusebase-dev/fusebase-flow

Made for: Claude Code, Codex.

Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,680 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.

ModelPer sessionOnce invoked
Fable 5 $0.00168 $0.02680
Opus 5 $0.00084 $0.01340
Sonnet 5 $0.00034 $0.00536
Haiku 4.5 $0.00017 $0.00268

Measured 2d ago against content hash b7b08faabb81, 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 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.

.agents/skills/handoff/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Handoff

Style: Mode-B-lite. Produces the active-continuity artifact docs/tmp/handoff.md (FR-23 Tier 2) for the NEXT AI coding agent — not a human PM report. Operator-triggered (invocation: manual) for restart mode; Mode: run-ledger is the sole sanctioned autonomous write (long-run continuity, announced in chat).

Purpose

Capture the exact current state of a coding session into docs/tmp/handoff.md so a brand-new AI session continues without the previous chat. Long sessions degrade and compaction is lossy; a structured handoff preserves goal, repo state, decisions, in-flight files, failed attempts, constraints, and the single next action. This is the active restart state; formal role-relay prompts (implement/deploy/architect) are separate dated files under docs/tmp/handoff/ produced by implementation-planning / release-deploy-reporting.

Two modes (header Mode: line; absent in a legacy file → treat as restart): restart — operator-triggered snapshot for the next session; run-ledger — a long autonomous run's continuity note, written without operator trigger and announced in chat (one line), so context death mid-run loses nothing. A fresh session reading Mode: run-ledger resumes from records (read the ledger + cited artifacts first, resume from the last durable fact — task-delegation successor contract); a run-ledger is a continuity note, not a role-relay draft (it does not breach "AI Developer acknowledges; doesn't draft").

When to invoke

  • Operator says "prepare a handoff" / "hand this off" / "continue in a new chat" / runs /handoff (→ Mode: restart).
  • Session is getting long / context degrading, or about to stop a complex implementation, migration, or debugging session.
  • Meaningful code/test/schema/config/decision changes were made and must survive into the next session.
  • A long autonomous run needs continuity across possible context death (→ Mode: run-ledger, no operator trigger needed; announce the write in chat — one line).

Read the full file on GitHub · 117 lines

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.

  1. 2d ago First seen · 117 lines · 168 tokens per session scan A b7b08faabb81

Subscribe to this mod's changes

handoff is a skill published in the GitHub repository fusebase-dev/fusebase-flow (9 stars, last pushed 7d ago), licensed MIT. It adds 168 tokens to every session and 2,680 once invoked, about $0.0008 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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