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/davidcreador/codex-token-guard/pre-compactgit clone --depth 1 https://github.com/Davidcreador/codex-token-guardGrade A, and why
PreCompact 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.
What it actually says
{
"PreCompact": [
{
"hooks": [
{
"type": "command",
"command": "node \"${PLUGIN_ROOT:-${CODEX_PLUGIN_ROOT:-${CLAUDE_PLUGIN_ROOT:-${CODEX_TOKEN_GUARD_ROOT:-$PWD}}}}/dist/hooks/pre-compact.js\"",
"timeout": 10,
"statusMessage": "Token Guard preparing session summary..."
}
]
}
]
}What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 14 lines scan A 8f9b9fcac12d
PreCompact is a hook published in the GitHub repository Davidcreador/codex-token-guard (2 stars, last pushed 2mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other hooks, from other repositories
SessionStart
Runs when a session starts on ^(startup, resume, clear and compact)$, executing context_canvas.py via python3. From phenomenoner/Chatgpt-Codex-App-Plus.
UserPromptSubmit
Runs when you submit a prompt, before the agent sees it, executing context_canvas.py via python3. From phenomenoner/Chatgpt-Codex-App-Plus.
PostToolUse
Runs after a tool call finishes, executing context_canvas.py via python3. From phenomenoner/Chatgpt-Codex-App-Plus.
SessionStart
Runs when a session starts on startup, resume, clear and compact, executing hook.py via python3 with --plugin-data-dir. From mem0ai/mem0.
SessionStart
Runs when a session starts on compact, executing post-compact-context.py, map-memory-finalize.py and map-memory-recall.py (3 commands). From azalio/map-framework.
PostToolUse
Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.