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/future-architect/uzomuzo-oss/pre-tool-usegit clone --depth 1 https://github.com/future-architect/uzomuzo-ossWrote 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/future-architect/uzomuzo-oss/pre-tool-use)<a href="https://agentmods.dev/hooks/future-architect/uzomuzo-oss/pre-tool-use"><img src="https://agentmods.dev/badge/hooks/future-architect/uzomuzo-oss/pre-tool-use.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
PreToolUse scanned grade A with 1 finding 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 4d 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
"command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{let cmd='';try{cmd=JSON.parse(d).tool_input?.command||'';}catch(e){}if(/^git\\s+commit/.test(cmd)){const{execFileSync}=require(' How it starts
The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"PreToolUse": [
{
"matcher": "ExitPlanMode",
"hooks": [
{
"type": "command",
"command": "bash .claude/hooks/plan-mode-architect-check.sh",
"timeout": 10,
"statusMessage": "Checking architect consultation..."
}
]
},
{
"matcher": "Bash",
"hooks": [
{
"type": "command",
"command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{const cmd=JSON.parse(d).tool_input?.command||'';if(/^git\\s+push/.test(cmd)){console.log(JSON.stringify({hookSpecificOutput:{hookEventName:'PreToolUse',additionalContext:'IMPORTANT: Before pushing, check if documentation needs updating for the changes on this branch. Run git diff main...HEAD --name-only to see changed files. If Go source files changed, launch the doc-updater agent to update README and godoc comments. Only proceed with git push after docs are confirmed up-to-date or updated.'}}));}});\"",
"timeout": 10,
"statusMessage": "Checking if docs need updating..."
},
{
"type": "command",
"command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{let cmd='';try{cmd=JSON.parse(d).tool_input?.command||'';}catch(e){}if(/^git\\s+commit/.test(cmd)){const{execFileSync}=require('child_process');const fs=require('fs');try{const root=execFileSync('git',['rev-parse','--show-toplevel'],{encoding:'utf8'}).trim();const hook=root+'/.claude/hooks/check-new-deps.sh';if(fs.existsSync(hook)){execFileSync('bash',[hook],{stdio:'inherit'});}}catch(e){process.exitCode=0;}}});\"",
"timeout": 30,
"statusMessage": "Checking new dependency health..."
},
{
"type": "command",
"command": "bash .claude/hooks/adr-check.sh",
"timeout": 15,
"statusMessage": "Checking if ADR is needed..."
},
{
"type": "command",
"coWhat else settings.json configures
This page is one entry in a file that holds 3. 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.
- 4d ago First seen · 56 lines scan A ee71474278bc
PreToolUse is a hook published in the GitHub repository future-architect/uzomuzo-oss (32 stars, last pushed yesterday), licensed Apache-2.0. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
Other hooks, from other repositories
PostToolUse
Runs after a tool call finishes for Edit, Write, Edit, Write, MultiEdit and Bash tool calls, executing format-and-lint.sh (2 commands). From chainloop-dev/chainloop.
SessionStart
Runs when a session starts, running chainloop trace hook claude session-start. From chainloop-dev/chainloop.
PostToolUse
Runs after a tool call finishes for Edit, Write and Bash tool calls, executing wizard-invariant-gate.sh and tui-pattern-nudge.sh via bash with --show-toplevel (2 commands). From OpenScribbler/syllago.
PreToolUse
Runs before the agent uses a tool for Bash tool calls, executing commit-gate.sh. From AndrewDryga/emisar.
PreToolUse
Runs before the agent uses a tool for Grep tool calls, running an inline shell check. From walkindude/gosymdb.
PostToolUse
Runs after a tool call finishes for Edit, Write and MultiEdit tool calls, executing format.mjs via node. From GRACENOBLE/fullstack-template.