A set of automatic checks that runs when the agent finishes a response. It executes scripts for finding secrets, checking RuleCatch results, and verifying environment-variable synchronization.

Use it to run verify-no-secrets.sh, check-rulecatch.sh, and check-env-sync.sh at the end of an agent response.

It adds a final verification step that can catch exposed secrets, rule violations, or configuration mismatches after the agent's work.

Stop — Hook by dr-code

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/dr-code/tessera/stop

Clone the repo

git clone --depth 1 https://github.com/dr-code/tessera

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 100% copy Near-identical to another mod 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.

Origin

This is a copy

100% identical to Stop — 6 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.

.claude/settings.json · 20 lines

What it actually says

{
  "Stop": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "bash ~/.claude/hooks/verify-no-secrets.sh"
        },
        {
          "type": "command",
          "command": "bash ~/.claude/hooks/check-rulecatch.sh"
        },
        {
          "type": "command",
          "command": "bash ~/.claude/hooks/check-env-sync.sh"
        }
      ]
    }
  ]
}

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 · 20 lines scan A f6d3aea2d34e

Subscribe to this mod's changes

Stop is a hook published in the GitHub repository dr-code/tessera (1 stars, last pushed 21d 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 100% identical to Stop, differing in 6 lines, and is treated as a copy.

Stop

Getting it into your agent

Grade A, and why

Nothing flagged

This is a copy

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

PostToolUse

SessionStart

SessionStart

PreToolUse

SessionStart

SessionStart