A set of hooks that runs when the agent finishes a response. It checks tests, linting, and type checking; formats edited files; looks for console.log; and prompts an exit checklist.

Use it to run a test-driven development check, where tests guide changes, and to apply end-of-response cleanup and verification.

It catches unfinished checks and formatting problems before the response is handed back.

Stop — Hook by brain-bootstrap

Install

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.

agentmods

npx agentmods add hooks/brain-bootstrap/claude-code-brain-bootstrap/stop

Clone the repo

git clone --depth 1 https://github.com/brain-bootstrap/claude-code-brain-bootstrap

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

Stop 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.

.claude/settings.json · 41 lines

What it actually says

{
  "Stop": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "\"${CLAUDE_PROJECT_DIR:-.}\"/.claude/hooks/tdd-loop-check.sh",
          "timeout": 120,
          "statusMessage": "Running tests (TDD loop check)..."
        }
      ],
      "description": "TDD loop: run tests+lint+typecheck; exit 2 feeds failures back to Claude for auto-fix",
      "id": "stop:tdd-loop"
    },
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "\"${CLAUDE_PROJECT_DIR:-.}\"/.claude/hooks/stop-batch-format.sh",
          "timeout": 120
        }
      ],
      "description": "Batch format all files edited this response + check for console.log",
      "id": "stop:batch-format"
    },
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "\"${CLAUDE_PROJECT_DIR:-.}\"/.claude/hooks/exit-nudge.sh",
          "timeout": 5
        }
      ],
      "description": "Nudge the 6-item exit checklist verification before yielding to user",
      "id": "stop:exit-nudge"
    }
  ]
}

Changes

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 · 41 lines scan A 66364082603e

Subscribe to this mod's changes

Stop is a hook published in the GitHub repository brain-bootstrap/claude-code-brain-bootstrap (11 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 2026-08-30.

Testing claude-code claude-config claude-context

Stop

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

SessionStart

PreToolUse

SubagentStop

PostToolUse

SessionStart

UserPromptSubmit