update-dedupe

update-dedupe is a skill for Claude Code, Codex from warpdotdev/oz-for-oss. It costs 49 tokens per session (817 once invoked), scanned A, original, MIT.

A maintenance skill that updates a repository's local duplicate-issue guidance using recently closed GitHub issues marked as duplicates.

In plain words
What is it for?
Use it to review duplicate signals over a chosen time window and update only the repository-local deduplication instructions.
Why use it?
It helps keep duplicate detection aligned with the issues maintainers have actually grouped together, without changing the shared core guidance.

Skill for Claude CodeCodex

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 skills/warpdotdev/oz-for-oss/update-dedupe
Any agent
npx skills add warpdotdev/oz-for-oss --skill update-dedupe
Clone the repo
git clone --depth 1 https://github.com/warpdotdev/oz-for-oss

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 update-dedupe

README.md
[![agentmods](https://agentmods.dev/badge/skills/warpdotdev/oz-for-oss/update-dedupe.svg)](https://agentmods.dev/skills/warpdotdev/oz-for-oss/update-dedupe)
Your own site
<a href="https://agentmods.dev/skills/warpdotdev/oz-for-oss/update-dedupe"><img src="https://agentmods.dev/badge/skills/warpdotdev/oz-for-oss/update-dedupe.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 817 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00049 $0.00817
Opus 5 $0.00024 $0.00409
Sonnet 5 $0.00010 $0.00163
Haiku 4.5 $0.00005 $0.00082

Measured 4d ago against content hash 162fd4008e91, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

update-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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/aggregate_dedupe_feedback.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/update-dedupe/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Update Dedupe

Use this skill to improve .agents/skills/dedupe-issue-local/SKILL.md from real closed-as-duplicate signals. The core skill at .agents/skills/dedupe-issue/SKILL.md is the cross-repo contract and is read-only from this loop.

This loop is focused exclusively on closed-as-duplicate signals. Other maintainer signals (re-labels, re-opens, follow-up comments) are handled by the separate update-triage loop.

Write surface

This self-improvement loop may only write to:

  • .agents/skills/dedupe-issue-local/ (and SKILL.md inside it)

It must NOT touch:

  • .agents/skills/dedupe-issue/SKILL.md (the core contract)
  • .agents/skills/triage-issue-local/SKILL.md (owned by update-triage)
  • any other core skill

The self-improvement runner enforces this via a git diff check against allowed prefixes before pushing. A violation aborts the run.

Inputs

  • Optional repository override if you are not running from the target checkout.
  • Optional time window override when you need something other than the default seven-day lookback.

Workflow

  1. Verify GitHub CLI auth:
gh auth status
  1. Aggregate closed-as-duplicate signals for recently closed issues with the bundled script:
python3 .agents/skills/update-dedupe/scripts/aggregate_dedupe_feedback.py

By default this targets the current repo and looks back 7 days. It collects only issues GitHub itself recorded as closed with the duplicate close reason (state_reason == "duplicate") and looks up the canonical issue each was closed against via the issue timeline's marked_as_duplicate event. Ad-hoc maintainer comments that merely mention another issue are intentionally ignored to avoid false positives. The script writes structured JSON to a temporary file and prints the path.

  1. Read the generated JSON and look for repeated clusters:
  • two or more different reporters filed similar issues that maintainers closed as duplicates of the same canonical thread
  • an explicit maintainer statement that a class of issue should always be treated as a duplicate of a canonical thread

Read the full file on GitHub · 69 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 4d ago First seen · 69 lines · 49 tokens per session scan A 162fd4008e91

Subscribe to this mod's changes

update-dedupe is a skill published in the GitHub repository warpdotdev/oz-for-oss (307 stars, last pushed 2d ago), licensed MIT. It adds 49 tokens to every session and 817 once invoked, about $0.0002 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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