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Agent skill

GitHub Issue Dedupe

by warpdotdev in warpdotdev/oz-skills

Detect duplicate GitHub issues using semantic search and keyword matching.

MITAuto-check passed

Install GitHub Issue Dedupe

skills CLI
$ npx skills add warpdotdev/oz-skills --skill github-issue-dedupe -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install warpdotdev/oz-skills github-issue-dedupe --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/warpdotdev/oz-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/github-issue-dedupe .claude/skills/github-issue-dedupe && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
github-issue-dedupe
GitHub stars
825
Token cost
~872 tokens
SKILL.md length
296 words
Files
2
Skills in repo
13
Repo updated
First seen
Licence
MIT

At a glance

Detect duplicate GitHub issues using semantic search and keyword matching.

  • Works in 4 steps: Gather Issue Context → Search Strategy → Candidate Inspection → …
  • Asked to find duplicates
  • SKILL.md covers Workflow and Examples
  • Calls gh

What it does

GitHub Issue Dedupe is an agent skill from warpdotdev/oz-skills. Detect duplicate GitHub issues using semantic search and keyword matching. Use when asked to find duplicates, check for similar issues, or set up automated duplicate detection.

Its SKILL.md is about 870 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `README.md`).

It works with GitHub. The licence is MIT.

When your agent uses it

  • Asked to find duplicates
  • Check for similar issues
  • Set up automated duplicate detection

Example prompts

  • “/github-issue-dedupe”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Gather Issue Context
  2. Search Strategy
  3. Candidate Inspection
  4. Report Findings

What it can do on your machine

Read from SKILL.md and the folder at commit 6c08c49. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • gh

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use gh, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

GitHub Issue Dedupe loads about 872 tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 296 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~49
When it runs · the whole SKILL.md, loaded when a task matches
~872

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from warpdotdev/oz-skills at commit 6c08c49, republished under its MIT licence (© warpdotdev). 296 words, ~872 tokens.

Download SKILL.mdSave it as .claude/skills/github-issue-dedupe/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
github-issue-dedupe
description
Detect duplicate GitHub issues using semantic search and keyword matching. Use when asked to find duplicates, check for similar issues, or set up automated duplicate detection.
license
MIT

GitHub Duplicate Issue Detection

Find duplicate GitHub issues using multi-strategy search. Can be run manually or automated via GitHub Actions.

Workflow

1. Gather Issue Context

Extract key information from the target issue:

  • Issue number and title
  • Full body content
  • Error messages or stack traces
  • Keywords and technical terms
  • Symptoms or behavior descriptions
2. Search Strategy

Use gh to search for related issues using multiple strategies:

  • Keyword search from title and body
  • Search for similar error messages
  • Look for similar symptoms
3. Candidate Inspection

For each potential duplicate:

  • View full issue with gh issue view <number>
  • Compare:
    • Root cause (same underlying problem?)
    • Symptoms (identical behavior?)
    • Error messages (exact match or very similar?)
    • Affected components (same area of code?)

High confidence indicators:

  • Identical error messages
  • Same reproduction steps
  • Same root cause with different descriptions
  • One issue references the other

Low confidence (not duplicates):

  • Similar symptoms but different causes
  • Related but independent bugs
  • Same component but different behaviors
4. Report Findings

If duplicates found:

Post comment on target issue:

bash
gh issue comment <number> --body "This is potentially a duplicate of #123 and #456."

Format rules:

  • Single duplicate: "This is potentially a duplicate of #123."
  • Two duplicates: "This is potentially a duplicate of #123 and #456."
  • Three+ duplicates: "This is potentially a duplicate of #123, #456, and #789."

Only comment if high confidence (90%+ certain). When uncertain, do nothing.

Examples

Example 1: Clear Duplicate

Target Issue #150:

Title: "Dropdown menu stays open on mobile Safari"
Body: Clicking menu items doesn't close dropdown on iOS

Search process:

bash
gh issue list --search "dropdown mobile safari"
gh issue list --search "menu doesn't close"
gh issue view 87  # Found similar issue

Issue #87:

Title: "Mobile menu not closing after selection"
Body: On iOS Safari, menu stays open after clicking items

Determination: Duplicate

  • Same symptom (menu stays open)
  • Same platform (iOS Safari)
  • Same root cause
Example 2: Similar But Not Duplicate

Target Issue #200:

Title: "Form validation error on submit"
Error: "Cannot read property 'value' of null"

Search process:

bash
gh issue list --search "form validation"
gh issue list --search "Cannot read property value null"
gh issue view 175

Issue #175:

Title: "Form submission fails"
Error: "Cannot read property 'email' of undefined"

Determination: Not duplicate

  • Different error messages
  • Different null references (value vs email)
  • Related area but different bugs
Example 3: Multiple Duplicates

Target Issue #300:

Title: "Build fails with 'module not found' error"
Error: Error: Cannot find module './config'

Search results:

  • Issue #250: Same error, same module
  • Issue #280: Same error, same module
  • Issue #290: Different module error (not duplicate)

Action:

bash
gh issue comment 300 --body "This is potentially a duplicate of #250 and #280."

© warpdotdev, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/github-issue-dedupe of warpdotdev/oz-skills.

  • SKILL.md
  • README.md

Open the folder on GitHubat commit 6c08c49

Compare with similar skills

GitHub Issue Dedupe next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

GitHub Issue Dedupe compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
GitHub Issue Dedupe this skillwarpdotdev/oz-skills825—~872Automated safety check: PassMIT
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Diagnosing Superpowers Sessionsobra/superpowers296k3 repos~1.7kAutomated safety check: PassMIT
GitHub Deep Researchbytedance/deer-flow83k5 repos~1.3kAutomated safety check: PassMIT
Greplooponyx-dot-app/onyx32k4 repos~3.3kAutomated safety check: PassMIT
Update V8 Versionopeninterpreter/openinterpreter69k2 repos~845Automated safety check: PassApache-2.0

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Works with

Questions about GitHub Issue Dedupe

What does GitHub Issue Dedupe do?

Detect duplicate GitHub issues using semantic search and keyword matching. GitHub Issue Dedupe is an agent skill from warpdotdev/oz-skills. Detect duplicate GitHub issues using semantic search and keyword matching.

When should I use GitHub Issue Dedupe?

GitHub Issue Dedupe fits situations like: asked to find duplicates; check for similar issues; set up automated duplicate detection.

How do I install GitHub Issue Dedupe in Claude Code?

Run `npx skills add warpdotdev/oz-skills --skill github-issue-dedupe -a claude-code`. Or copy the skill folder (.agents/skills/github-issue-dedupe in warpdotdev/oz-skills) into .claude/skills/github-issue-dedupe in your project. Claude Code loads it when a task matches its description.

How do I install GitHub Issue Dedupe in Codex?

Run `npx skills add warpdotdev/oz-skills --skill github-issue-dedupe -a codex`. Or copy the skill folder (.agents/skills/github-issue-dedupe in warpdotdev/oz-skills) into .agents/skills/github-issue-dedupe in your project. Codex loads it when a task matches its description.

Can I use GitHub Issue Dedupe in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add warpdotdev/oz-skills --skill github-issue-dedupe -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/github-issue-dedupe, .gemini/skills/github-issue-dedupe, .github/skills/github-issue-dedupe and .opencode/skills/github-issue-dedupe in your project.

What does GitHub Issue Dedupe need to run?

Going by SKILL.md and its folder, GitHub Issue Dedupe needs the command-line tools its instructions call (gh).

Does GitHub Issue Dedupe access the network?

SKILL.md contains no URLs. Its commands use gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is GitHub Issue Dedupe safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does GitHub Issue Dedupe use?

GitHub Issue Dedupe is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does GitHub Issue Dedupe use?

About 872 tokens (SKILL.md is roughly 3.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to GitHub Issue Dedupe?

Skills that share tags, products or a category with GitHub Issue Dedupe: PR Babysitter (openinterpreter/openinterpreter, 69k stars), Diagnosing Superpowers Sessions (obra/superpowers, 296k stars), GitHub Deep Research (bytedance/deer-flow, 83k stars) and Greploop (onyx-dot-app/onyx, 32k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains GitHub Issue Dedupe?

warpdotdev (a GitHub organization) maintains it in warpdotdev/oz-skills, which has 825 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on August 15, 2026.

Source: warpdotdev/oz-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.