Borrowing it
Nothing to install: this file belongs to Piyush8296/claude-workspace. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Piyush8296/claude-workspace/main/.claude/settings.jsongit clone --depth 1 https://github.com/Piyush8296/claude-workspaceWrote 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/piyush8296/claude-workspace/post-tool-use)<a href="https://agentmods.dev/hooks/piyush8296/claude-workspace/post-tool-use"><img src="https://agentmods.dev/badge/hooks/piyush8296/claude-workspace/post-tool-use.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
PostToolUse 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"PostToolUse": [
{
"matcher": "Edit|Write|MultiEdit",
"hooks": [
{
"type": "command",
"command": "if [[ \"$CLAUDE_TOOL_INPUT_FILE_PATH\" =~ \\.(ts|tsx|js|jsx)$ ]]; then\n npx prettier --write \"$CLAUDE_TOOL_INPUT_FILE_PATH\" 2>/dev/null\n if [ $? -eq 0 ]; then\n echo '{\"feedback\": \"Formatted with Prettier.\", \"suppressOutput\": true}'\n else\n echo '{\"feedback\": \"Prettier formatting failed — check syntax.\"}' >&2\n fi\nfi",
"timeout": 15
}
]
},
{
"matcher": "Edit|Write|MultiEdit",
"hooks": [
{
"type": "command",
"command": "if [[ \"$CLAUDE_TOOL_INPUT_FILE_PATH\" =~ \\.(ts|tsx)$ ]]; then\n output=$(npx tsc --noEmit 2>&1)\n exit_code=$?\n if [ $exit_code -eq 0 ]; then\n echo '{\"feedback\": \"TypeScript: no errors.\", \"suppressOutput\": true}'\n else\n errors=$(echo \"$output\" | grep -A 2 \"error TS\" | head -20)\n echo \"{\\\"feedback\\\": \\\"TypeScript errors found:\\\n$errors\\\"}\" >&2\n fi\n exit 0\nfi",
"timeout": 30
}
]
},
{
"matcher": "Edit|Write|MultiEdit",
"hooks": [
{
"type": "command",
"command": "if [[ \"$CLAUDE_TOOL_INPUT_FILE_PATH\" =~ \\.test\\.(ts|tsx|js|jsx)$ ]]; then\n echo '{\"feedback\": \"Running related tests...\"}' >&2\n npx vitest run \"$CLAUDE_TOOL_INPUT_FILE_PATH\" --reporter=verbose 2>&1 | tail -25\n if [ ${PIPESTATUS[0]} -eq 0 ]; then\n echo '{\"feedback\": \"Tests passed.\"}'\n else\n echo '{\"feedback\": \"Tests failed — see output above.\"}' >&2\n fi\nfi",
"timeout": 60
}
]
},
{
"matcher": "Edit|Write|MultiEdit",
"hooks": [
{
"type": "command",
"command": "if [[ \"$CLAUDE_TOOL_INPUT_FILE_PATH\" =~ package\\.json$ ]]; then\n echo '{\"feedback\": \"Installing dependencies...\"}' >&2\n pnpm install --frozen-lockfile 2>/dev/null || npWhat else settings.json configures
This page is one entry in a file that holds 4. 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.
- 7d ago First seen · 65 lines scan A 92c9403079f7
PostToolUse is a hook published in the GitHub repository Piyush8296/claude-workspace (2 stars, last pushed 4mo 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other hooks, from other repositories
Stop
Runs when the agent finishes a response, executing bot-shutdown-notify.ts. From terrylica/cc-skills.
PostToolUse
Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.
SessionStart
Runs when a session starts on startup, executing install_pkgs.sh. From supabase/supabase.
SessionStart
Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.
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.