dedupe

dedupe is a command for Claude Code from twaldin/hone. It costs 5 tokens per session (533 once invoked), scanned A, original, MIT.

A command for finding GitHub issues that are likely duplicates of a given issue. An issue is a tracked report of a bug, task, or requested change.

In plain words
What is it for?
Use it to search for up to three likely duplicate issues and add the results to the original issue when matches remain.
Why use it?
It helps avoid creating or maintaining several reports for the same problem by searching related issues and filtering out unsuitable matches.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code.

Good fit Use it to search for up to three likely duplicate issues and add the results to the original issue when matches remain.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/twaldin/hone/dedupe
View source ↗ twaldin/hone
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.

Clone the repo
git clone --depth 1 https://github.com/twaldin/hone

Made for: Claude Code.

Wrote 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.

agentmods badge for dedupe

README.md
[![agentmods](https://agentmods.dev/badge/commands/twaldin/hone/dedupe/github.svg)](https://agentmods.dev/commands/twaldin/hone/dedupe)
Your own site
<a href="https://agentmods.dev/commands/twaldin/hone/dedupe"><img src="https://agentmods.dev/badge/commands/twaldin/hone/dedupe/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dedupe

Your own site · 80×15
<a href="https://agentmods.dev/commands/twaldin/hone/dedupe"><img src="https://agentmods.dev/badge/commands/twaldin/hone/dedupe.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 533 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00005 $0.00533
Opus 5 $0.00003 $0.00267
Sonnet 5 $0.00001 $0.00107
Haiku 4.5 $0.00001 $0.00053

Measured yesterday against content hash 7b6d70fd11bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dedupe 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 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.

capsules/bun-module-loader/.candidate-5187e276/.claude/commands/dedupe.md · 44 lines

What it actually says

Issue deduplication command

Find up to 3 likely duplicate issues for a given GitHub issue.

To do this, follow these steps precisely:

  1. Use an agent to check if the GitHub issue (a) is closed, (b) does not need to be deduped (eg. because it is broad product feedback without a specific solution, or positive feedback), or (c) already has a duplicate detection comment (check for the exact HTML marker <!-- dedupe-bot:marker --> in the issue comments - ignore other bot comments). If so, do not proceed.
  2. Use an agent to view a GitHub issue, and ask the agent to return a summary of the issue
  3. Then, launch 5 parallel agents to search GitHub for duplicates of this issue, using diverse keywords and search approaches, using the summary from Step 2. IMPORTANT: Always scope searches with repo:owner/repo to constrain results to the current repository only.
  4. Next, feed the results from Steps 2 and 3 into another agent, so that it can filter out false positives, that are likely not actually duplicates of the original issue. If there are no duplicates remaining, do not proceed.
  5. Finally, comment back on the issue with a list of up to three duplicate issues (or zero, if there are no likely duplicates)

Notes (be sure to tell this to your agents, too):

  • Use gh to interact with GitHub, rather than web fetch
  • Do not use other tools, beyond gh (eg. don't use other MCP servers, file edit, etc.)
  • Make a todo list first
  • Always scope searches with repo:owner/repo to prevent cross-repo false positives
  • For your comment, follow the following format precisely (assuming for this example that you found 3 suspected duplicates):

Found 3 possible duplicate issues:

This issue will be automatically closed as a duplicate in 3 days.

  • If your issue is a duplicate, please close it and 👍 the existing issue instead
  • To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code


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. yesterday First seen · 44 lines · 5 tokens per session scan A 7b6d70fd11bb

Subscribe to this mod's changes

dedupe is a command published in the GitHub repository twaldin/hone (47 stars, last pushed yesterday), licensed MIT. It adds 5 tokens to every session and 533 once invoked, about $0.0000 per session on Opus 5. 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 2026-09-07.