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.
/plugin marketplace add lacolaco/claude-pluginsnpx agentmods add plugins/lacolaco/claude-plugins/session-handovergit clone --depth 1 https://github.com/lacolaco/claude-pluginsGrade 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.
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"]
}
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.
- yesterday First seen · 12 lines scan A ec1114fda7b8
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.
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