Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add wangshunnn/claude-telemetry/plugin install claude-telemetryWrote 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/wangshunnn/claude-telemetry/instructions-loaded)<a href="https://agentmods.dev/hooks/wangshunnn/claude-telemetry/instructions-loaded"><img src="https://agentmods.dev/badge/hooks/wangshunnn/claude-telemetry/instructions-loaded.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
InstructionsLoaded 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 5d 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
53% identical to SessionStart — 7 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
{
"InstructionsLoaded": [
{
"hooks": [
{
"type": "command",
"command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/append-event.mjs\" instructions_loaded || true"
}
]
}
]
}What else hooks.json configures
This page is one entry in a file that holds 13. Installing the file brings all of them; each is measured and scanned on its own page.
- Hook Notification A not measured
- Hook PermissionRequest A not measured
- Hook PostToolUse A not measured
- Hook PostToolUseFailure A not measured
- Hook PreToolUse A not measured
- Hook SessionStart A not measured
- Hook Stop A not measured
- Hook StopFailure A not measured
- Hook SubagentStart A not measured
- Hook SubagentStop A not measured
- Hook UserPromptExpansion A not measured
- Hook UserPromptSubmit A not measured
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.
- 5d ago First seen · 12 lines scan A 819449925d55
InstructionsLoaded is a hook published in the GitHub repository wangshunnn/claude-telemetry (5 stars, last pushed 3mo 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 53% identical to SessionStart, differing in 7 lines, and is treated as a copy.
Other hooks, from other repositories
PreToolUse
Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From mudrii/openclaw-dashboard.
PermissionDenied
Runs on the PermissionDenied event, executing dev-hook.mjs with --hook. From FailproofAI/failproofai.
TeammateIdle
Runs on the TeammateIdle event, executing dev-hook.mjs with --hook. From FailproofAI/failproofai.
ConfigChange
Runs on the ConfigChange event, executing dev-hook.mjs with --hook. From FailproofAI/failproofai.
ElicitationResult
Runs on the ElicitationResult event, executing dev-hook.mjs with --hook. From FailproofAI/failproofai.
SessionStart
Runs when a session starts, executing cli.js via node. From code-yeongyu/codex-rules.