duplicate-detection

duplicate-detection is a skill for Claude Code, Codex from TommyBez/evex. It costs 23 tokens per session (197 once invoked), scanned A, original, MIT.

A guide for finding likely duplicate issues in Linear, a tool for tracking software work. It compares candidate issues before suggesting how they should be handled.

In plain words
What is it for?
Use it to search for matching reports, compare their symptoms and scope, choose the main issue, and suggest links, merges, or closures.
Why use it?
It reduces repeated investigation and prevents several issues from tracking the same problem separately.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to search for matching reports, compare their symptoms and scope…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tommybez/evex/duplicate-detection
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.

Any agent
npx skills add TommyBez/evex --skill duplicate-detection
Clone the repo
git clone --depth 1 https://github.com/TommyBez/evex

Made for: Claude Code, Codex.

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 duplicate-detection

README.md
[![agentmods](https://agentmods.dev/badge/skills/tommybez/evex/duplicate-detection.svg)](https://agentmods.dev/skills/tommybez/evex/duplicate-detection)
Your own site
<a href="https://agentmods.dev/skills/tommybez/evex/duplicate-detection"><img src="https://agentmods.dev/badge/skills/tommybez/evex/duplicate-detection.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 197 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 $0.00023 $0.00197
Opus 5 $0.00012 $0.00098
Sonnet 5 $0.00005 $0.00039
Haiku 4.5 $0.00002 $0.00020

Measured 7d ago against content hash 709c63455412, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

duplicate-detection 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 7d 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.

registry/linear-operations-agent/agent/skills/duplicate-detection/SKILL.md · 27 lines

What it actually says

Duplicate detection

Use when a user asks whether an issue is duplicated or related.

Process

  1. Extract search terms from title, description, error messages, product area, labels, and comments.
  2. Use list_issues with targeted queries. Done when at least one search has run.
  3. Use get_issue on the strongest candidates before recommending. Done when each candidate's scope, symptoms, environment, impacted user flow, and status are compared.
  4. Recommend the canonical issue to keep open.
  5. Propose duplicate links, status changes, or closures only after comparison is complete.

Output

Use the agent default response shape, plus candidate duplicates, why they match or do not match, recommended canonical issue, and proposed Linear action.

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. 7d ago First seen · 27 lines · 23 tokens per session scan A 709c63455412

Subscribe to this mod's changes

duplicate-detection is a skill published in the GitHub repository TommyBez/evex (24 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 197 once invoked, about $0.0001 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 2026-08-30.

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