handoffplan

handoffplan is a skill for Claude Code, Codex from REMvisual/claude-handoff. It costs 28 tokens per session (2,856 once invoked), scanned A, original, MIT.

A workflow that captures the current coding session and turns it into a phased implementation plan. It also creates beads, which are tracking items for the work.

In plain words
What is it for?
It is for running a full handoff, checking the captured information, expanding missing details, and producing a plan that refers back to that handoff.
Why use it?
It preserves important context and decisions when planning needs to continue across sessions.

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/remvisual/claude-handoff/handoffplan
Any agent
npx skills add REMvisual/claude-handoff --skill handoffplan
Clone the repo
git clone --depth 1 https://github.com/REMvisual/claude-handoff

Made for: Claude Code, Codex.

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.

agentmods badge for handoffplan

README.md
[![agentmods](https://agentmods.dev/badge/skills/remvisual/claude-handoff/handoffplan.svg)](https://agentmods.dev/skills/remvisual/claude-handoff/handoffplan)
Your own site
<a href="https://agentmods.dev/skills/remvisual/claude-handoff/handoffplan"><img src="https://agentmods.dev/badge/skills/remvisual/claude-handoff/handoffplan.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,856 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 $0.00028 $0.02856
Opus 5 $0.00014 $0.01428
Sonnet 5 $0.00006 $0.00571
Haiku 4.5 $0.00003 $0.00286

Measured 5d ago against content hash 100f34e2fd86, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

handoffplan 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 5d 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.

skills/handoffplan/SKILL.md · 268 lines

How it starts

The opening of the file, as written. The whole thing — 268 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Handoff Plan

IMPORTANT: This skill writes files. You MUST NOT be in Claude Code's built-in plan mode. If you are currently in plan mode, exit plan mode first (use ExitPlanMode) before proceeding. This skill produces plan files — it does not use Claude Code's plan mode feature. They are different things.

Step 1: Run /handoff to create the data file — FULL TWO-PHASE PROCESS.

Execute the full /handoff skill first, including the mandatory two-phase write process:

  • Phase 1: Write the handoff file (all sections, narrative + evidence)
  • Phase 2 (MANDATORY for Deep and Chunked passes): Read it back, scan conversation for uncaptured data, use Edit to expand toward the ceiling (800 lines for 1M context)

This is not optional. The handoff is the data store — a thin handoff produces a thin plan. Follow the handoff skill's mining-pass detection, line count checks, and gap research pass exactly as specified.

Do NOT skip or abbreviate the handoff. Do NOT skip Phase 2. If the handoff is under 500 lines on a Chunked pass, you haven't mined deep enough — go back and expand before writing the plan.

Do NOT ask to close the session after the handoff. Skip Step 8 of the handoff skill — the close prompt happens after the plan is written, not after the handoff.

Do NOT enter Claude Code plan mode at any point. This skill writes files and commits. Plan mode is not used.

This skill creates a plan for the NEXT session to execute. The handoff captures data. The plan defines work. Beads track phases. Then you commit, close, and give the user a paste prompt that tells the next session to start executing Phase 1 immediately — no onboarding, no exploration, just code. The next session gets full clean context because it's a fresh session.

Arguments: $ARGUMENTS


CHECKPOINT before Step 2: Count the handoff's lines. Check its mining-pass minimum (Quick: 150/250, Deep: 300, Chunked: 500 — see handoff skill's Line Budget table). If the handoff is under its pass minimum, STOP. Run the handoff's Phase 2 gap research pass now — read back what you wrote, scan the conversation for uncaptured data, and Edit to expand. Do not proceed to the plan with a thin handoff. The plan's quality is bounded by the handoff's quality.


Step 2: Write the plan file.

Once the handoff file exists, write the plan. The plan lives in the same directory as the handoff, with the same slug:

  • Handoff: HANDOFF_{chain_tag}_{slug}_{date}.md (already written — or HANDOFF_{slug}_{date}.md if no beads)
  • Plan: PLAN_{chain_tag}_{slug}_{date}.md (write this now — mirror the handoff's naming)

Read the full file on GitHub · 268 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. 5d ago First seen · 268 lines · 28 tokens per session scan A 100f34e2fd86

Subscribe to this mod's changes

handoffplan is a skill published in the GitHub repository REMvisual/claude-handoff (48 stars, last pushed 3mo ago), licensed MIT. It adds 28 tokens to every session and 2,856 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 2026-08-30.