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/lyakakoy/hermes-codex-plugin/pre-compactgit clone --depth 1 https://github.com/LYAKAKOY/Hermes-Codex-PluginGrade 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 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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 · 15 lines scan A dd5af2ba4051
PreCompact is a hook published in the GitHub repository LYAKAKOY/Hermes-Codex-Plugin (19 stars, last pushed 2mo ago), with no licence file. 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 2026-08-30.
Other hooks, from other repositories
SessionStart
Runs when a session starts on startup and resume, executing deja.sh. From vshulcz/deja-vu.
SessionStart
Runs when a session starts on startup, resume and compact, executing session-start.sh via bash (3 commands). From JKHeadley/instar.
PreCompact
Runs before the context is compacted, executing checkpoint.sh. From docmancer/docmancer.
PreCompact
Runs before the context is compacted, executing memx-hook.mjs via node. From NeoLi00/memX.
SubagentStop
Runs when a subagent finishes, executing memx-hook.mjs via node. From NeoLi00/memX.
SessionStart
Runs when a session starts, executing cli.js via node. From code-yeongyu/codex-rules.