oz-for-oss: Skill for Claude Code

.agents/skills/update-dedupe/SKILL.md

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

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is warpdotdev/oz-for-oss's own configuration. It tells Claude Code and Codex how to work on oz-for-oss itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything oz-for-oss configures →

Reuse

Borrowing it

Nothing to install: this file belongs to warpdotdev/oz-for-oss. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/warpdotdev/oz-for-oss/main/.agents/skills/update-dedupe/SKILL.md
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/github.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/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 update-dedupe

Your own site · 80×15
<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="Reviewed on agentmods" width="80" 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. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 5 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 8
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 52
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 8
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 20
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 21
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00049 $0.00817
Opus 5.5 $0.00020 $0.00327
Sonnet 5.5 $0.00010 $0.00163
Haiku 4.5 $0.00005 $0.00082

Measured 1mo ago against content hash 162fd4008e91, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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. 1mo 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 (312 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 817 once invoked, about $0.0002 per session on Opus 5.5. 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.