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.
git clone --depth 1 https://github.com/scarce/axelWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/hooks/scarce/axel/post-tool-use)<a href="https://agentmods.dev/hooks/scarce/axel/post-tool-use"><img src="https://agentmods.dev/badge/hooks/scarce/axel/post-tool-use/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/hooks/scarce/axel/post-tool-use"><img src="https://agentmods.dev/badge/hooks/scarce/axel/post-tool-use.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade B, and why
PostToolUse scanned grade B with 2 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 1mo 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
"command": "curl -s -X POST -H 'Content-Type: application/json' -d @- http://localhost:4318/events/shell-13171", Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
"command": "curl -s -X POST -H 'Content-Type: application/json' -d @- http://localhost:4318/events/shell-13171", 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 else settings.json configures
This page is one entry in a file that holds 8. Installing the file brings all of them; each is measured and scanned on its own page.
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.
- 1mo ago First seen · 14 lines scan B f3dddf7c394e
PostToolUse is a hook published in the GitHub repository scarce/axel (208 stars, last pushed 5mo 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 B with 2 findings (sends data to an external url, makes network calls). 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, executing satori_memory.py via python. From MetcalfSolutions/Satori.
PreToolUse
Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.
PreToolUse
Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.
PostToolUse
Runs after a tool call finishes for Bash tool calls, executing hooks.sh via sh (3 commands). From anthropics/claude-plugins-official.
PreCompact
Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.
SessionStart
Runs when a session starts on startup, executing worktree-setup.mjs via bash with --show-toplevel. From openclaw/openclaw.