csm-handoff

csm-handoff is a command for Claude Code from NovasPlace/CSM. It costs 12 tokens per session (150 once invoked), scanned A, original, MIT.

A command for writing a concrete handoff summary before work is stopped or transferred to another agent or person.

In plain words
What is it for?
Use it to record the outcome, changed files, verification performed, open risks, and the next action without including secrets.
Why use it?
It reduces the time needed to reconstruct the current state and makes unfinished risks and next steps visible.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the cross-session-memory plugin — 2 skills, 12 commands, 3 agents shipped together

Good fit Use it to record the outcome, changed files, verification performed, open risks, and the next action without including secrets.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/novasplace/csm/csm-handoff
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.

Clone the repo
git clone --depth 1 https://github.com/NovasPlace/CSM

Made for: Claude Code.

Or install cross-session-memory, the plugin that ships this one along with the rest of its 2 skills, 12 commands, 3 agents.

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 csm-handoff

README.md
[![agentmods](https://agentmods.dev/badge/commands/novasplace/csm/csm-handoff/github.svg)](https://agentmods.dev/commands/novasplace/csm/csm-handoff)
Your own site
<a href="https://agentmods.dev/commands/novasplace/csm/csm-handoff"><img src="https://agentmods.dev/badge/commands/novasplace/csm/csm-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.

agentmods 80×15 button for csm-handoff

Your own site · 80×15
<a href="https://agentmods.dev/commands/novasplace/csm/csm-handoff"><img src="https://agentmods.dev/badge/commands/novasplace/csm/csm-handoff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 150 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00012 $0.00150
Opus 5 $0.00006 $0.00075
Sonnet 5 $0.00002 $0.00030
Haiku 4.5 $0.00001 $0.00015

Measured 9d ago against content hash 45eb9a2b6cc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

csm-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 9d 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.

plugins/cross-session-memory/commands/csm-handoff.md · 13 lines

What it actually says

Prepare a handoff $ARGUMENTS.

  1. Resolve projectRoot to the current workspace root.
  2. If the current state is expensive to reconstruct, create_checkpoint first.
  3. Sync the final durable milestone with bridge_sync_turn, then call bridge_handoff_summary.
  4. Make the handoff concrete: outcome, files changed, verification performed, open risks, and the next action. Never persist secrets or credentials.
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. 9d ago First seen · 13 lines · 12 tokens per session scan A 45eb9a2b6cc9

Subscribe to this mod's changes

csm-handoff is a command published in the GitHub repository NovasPlace/CSM (42 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 150 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.