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.
npx agentmods add hooks/nvk/llm-wiki/post-compactgit clone --depth 1 https://github.com/nvk/llm-wikiGrade A, and why
PostCompact 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 2d ago.
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.
This is a copy
84% identical to SessionStart — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
{
"PostCompact": [
{
"matcher": "*",
"hooks": [
{
"type": "command",
"command": "python3 -c 'import glob,os,runpy,sys; p=os.path.join(os.environ.get(\"PLUGIN_ROOT\",\"\"),\"hooks\",\"llm_wiki_session.py\"); xs=glob.glob(os.path.expanduser(\"~/.codex/plugins/cache/llm-wiki/wiki/*/hooks/llm_wiki_session.py\")); p=p if os.path.isfile(p) else (max(xs,key=os.path.getmtime) if xs else \"\"); sys.exit(0) if not p else None; sys.argv=[p,*sys.argv[1:]]; runpy.run_path(p,run_name=\"__main__\")' hook --harness codex --if-enabled",
"timeout": 5,
"statusMessage": "Capturing llm-wiki post-compact session context"
}
]
}
]
}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.
- 2d ago First seen · 15 lines scan A d1f3e4c6a16d
PostCompact is a hook published in the GitHub repository nvk/llm-wiki (1,175 stars, last pushed 5d 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. It is 84% identical to SessionStart, differing in 5 lines, and is treated as a copy.
Other hooks, from other repositories
FileChanged
Runs on the FileChanged event for .envrc, .env and .env.local tool calls, executing hooks.py via python3. From shanraisshan/claude-code-best-practice.
SessionEnd
Runs when a session ends, executing hooks.py via python3. From shanraisshan/claude-code-best-practice.
PermissionRequest
Runs when the agent asks permission for an action, executing hooks.py via python3. From shanraisshan/claude-code-best-practice.
InstructionsLoaded
Runs after instructions files are loaded for session_start, nested_traversal, path_glob_match, include and compact tool calls, executing validate-claude-md.py via python3. From alirezarezvani/ClaudeForge.
PostToolUse
Runs after a tool call finishes for Bash tool calls, executing capture-tool-result.sh via bash. From share-skills/pi.
PreToolUse
Runs before the agent uses a tool for Write, Edit, Bash, Agent, Task, SendMessage and TaskStop tool calls, running bash (3 commands). From modu-ai/moai-adk.