session-handover

A Claude Code plugin for recording work handovers between people or agents. It stores the current holder’s report, history, references, and takeover checks in project-and-role documents.

In plain words
What is it for?
Use it to write a handoff report, transfer a job seat to a successor, record accountability history, and track required reading of referenced evidence.
Why use it?
It preserves context when responsibility for a job changes and requires the successor to verify inherited claims and references.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add lacolaco/claude-plugins
agentmods
npx agentmods add plugins/lacolaco/claude-plugins/session-handover
Clone the repo
git clone --depth 1 https://github.com/lacolaco/claude-plugins

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

session-handover 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 yesterday.

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.

session-handover/.claude-plugin/plugin.json · 12 lines

What it actually says

{
  "name": "session-handover",
  "description": "Job-succession handover/takeover for Claude Code. Each document represents a job seat identified by (project, role) frontmatter and lives at <base>/<holder>.md, where <holder> is the current holder's English first name. /handover writes a holder's handoff report (Knowledge block) and an append-only accountability ledger (History block). /takeover transfers the seat: the file is renamed <predecessor>.md -> <successor>.md, a takeover entry is appended to History, and the successor audits inherited claims before relying on them. Every referenced artifact — References entries and History [ref:] citations alike — is externalized into a mandatory read task and drained before any work starts; reading the inherited citations is not optional. Self/other boundary is preserved by design — the successor does not become the predecessor — so that critical verification of the predecessor's report stays sharp. Predecessor failures that surface during the successor's tenure become the successor's recovery work, per standard business succession discipline. <base> resolves deterministically via the bundled handover-dir command (walks up to the nearest .handover/, falls back to $HOME/.handover). v2.x .claude/handover/ layouts and v3.x description-only frontmatter are auto-migrated.",
  "version": "5.1.0",
  "author": {
    "name": "Suguru Inatomi"
  },
  "repository": "https://github.com/lacolaco/claude-plugins",
  "license": "MIT",
  "keywords": ["session", "handover", "takeover", "job-succession", "accountability"]
}
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. yesterday First seen · 12 lines scan A ec1114fda7b8

Subscribe to this mod's changes

session-handover is a plugin published in the GitHub repository lacolaco/claude-plugins (5 stars, last pushed 6d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.