agentmods.dev

PostToolUse

Automatic actions that run after the agent writes or edits a file. They add links from scratch notes into the note graph and rebuild the project INDEX when STATE files change.

In plain words
What is it for?
Use them to update backlinks after writing notes and refresh the active-work dashboard after writing or editing project state.
Why use it?
They keep project notes connected and the overview current without requiring separate manual commands after every file change.

Hook

1 1mo ago A scan tokens not measured original MIT
View the source file shck-dev/ccx-context-system
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 hooks/shck-dev/ccx-context-system/post-tool-use
Clone the repo
git clone --depth 1 https://github.com/shck-dev/ccx-context-system
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

PostToolUse 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 commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.

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/ccx/hooks/hooks.json · 26 lines

What it actually says

{
  "PostToolUse": [
    {
      "matcher": "Write",
      "hooks": [
        {
          "type": "command",
          "command": "bun \"${CLAUDE_PLUGIN_ROOT}/scripts/backlink-scratch-notes.ts\"",
          "timeout": 15,
          "statusMessage": "ccx: linking note into graph"
        }
      ]
    },
    {
      "matcher": "Write|Edit",
      "hooks": [
        {
          "type": "command",
          "command": "bun \"${CLAUDE_PLUGIN_ROOT}/scripts/auto-compile-index.ts\"",
          "timeout": 10,
          "statusMessage": "ccx: recompiling INDEX"
        }
      ]
    }
  ]
}
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 · 26 lines scan A f144a6b5fade

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository shck-dev/ccx-context-system (1 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. 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.

Analytics and metricsMemory and contextWriting and docsanthropicclaude-codeclaude-code-hooksclaude-code-marketplaceclaude-code-pluginclaude-code-plugins
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