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/alivecontext/alive/session-startgit clone --depth 1 https://github.com/alivecontext/aliveGrade A, and why
SessionStart 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.
This is a copy
53% identical to SessionStart — 42 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
{
"SessionStart": [
{
"matcher": "startup",
"hooks": [
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-session-new.sh",
"timeout": 10
},
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-repo-detect.sh",
"timeout": 10
},
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-github-star-prompt.sh",
"timeout": 10
}
]
},
{
"matcher": "resume",
"hooks": [
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-session-resume.sh",
"timeout": 10
}
]
},
{
"matcher": "compact",
"hooks": [
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-session-compact.sh",
"timeout": 10
},
{
"type": "command",
"command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/alive-repo-detect.sh",
"timeout": 10
}
]
}
]
}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 · 49 lines scan A 6a74ae1ab22f
SessionStart is a hook published in the GitHub repository alivecontext/alive (127 stars, last pushed 6d 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 42 lines, and is treated as a copy.
Other hooks, from other repositories
PostCompact
Runs after the context is compacted, running echo 'REMINDERS (things linters dont catch): 1) Verify all s. From tomasz-tomczyk/crit.
PermissionRequest
Runs when the agent asks permission for an action for ExitPlanMode tool calls, running crit plan-hook. From tomasz-tomczyk/crit.
PostToolUse
Runs after a tool call finishes for Edit, Write, Bash, Read, Edit, Write, Glob, Grep, Agent and mcp__.* tool calls, executing read-cache.js and tracker.js (2 commands). From egorfedorov/claude-context-optimizer.
PreToolUse
Runs before the agent uses a tool for Read tool calls, executing read-cache.js and context-shield.js (2 commands). From egorfedorov/claude-context-optimizer.
PreCompact
Runs before the context is compacted, executing read-cache.js and tracker.js (2 commands). From egorfedorov/claude-context-optimizer.
SessionEnd
Runs when a session ends, executing tracker.js. From egorfedorov/claude-context-optimizer.