dead-end-registry

A memory tool for Claude Code that records approaches you tried and later abandoned, along with why they failed.

In plain words
What is it for?
Use it to review past dead ends, spot repeated failed approaches, and receive warnings when a proposed change resembles one of them.
Why use it?
It helps prevent the agent from repeating solutions that already caused problems in the same repository. It can also warn before an edit brings back code that was previously reverted.

Plugin for Claude 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.

Claude Code
/plugin marketplace add karanb192/claude-code-hooks
agentmods
npx agentmods add plugins/karanb192/claude-code-hooks/dead-end-registry
Clone the repo
git clone --depth 1 https://github.com/karanb192/claude-code-hooks

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

dead-end-registry 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 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

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.

plugins/dead-end-registry/.claude-plugin/plugin.json · 24 lines

What it actually says

{
  "name": "dead-end-registry",
  "description": "Approach-level negative-knowledge memory for Claude Code. Mines your transcripts (Stop/PreCompact, both async and zero added latency) for approaches you TRIED and then REVERTED (with the reason, date, and estimated token cost of the detour) into a per-repo registry. On UserPromptSubmit it injects a 'you already tried this' warning card when a new prompt matches a recorded dead end; on PreToolUse (Edit|Write) it asks before an edit reintroduces a previously-reverted hunk. Review the registry any time with /dead-end-registry:dead-ends.",
  "version": "1.0.2",
  "author": {
    "name": "Karan Bansal",
    "url": "https://github.com/karanb192"
  },
  "homepage": "https://github.com/karanb192/claude-code-hooks",
  "license": "MIT",
  "keywords": [
    "claude-code",
    "hooks",
    "memory",
    "context",
    "negative-knowledge",
    "userpromptsubmit",
    "pretooluse",
    "stop",
    "subagentstop",
    "precompact"
  ]
}
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.

  1. 2d ago First seen · 24 lines scan A d8b99808a4b8

Subscribe to this mod's changes

dead-end-registry is a plugin published in the GitHub repository karanb192/claude-code-hooks (494 stars, last pushed 9d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.