openspec-explore

A discussion mode for examining an idea, problem, or software change before implementation. It supports reading and investigating the codebase without changing the code.

In plain words
What is it for?
Use it to investigate code, think through designs, clarify a problem, or create planning documents without implementing the feature yet.
Why use it?
It helps clarify requirements and explore possible directions before committing to a solution. This can reveal missing questions or constraints early.

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/designpipe/exfig/openspec-explore
Any agent
npx skills add DesignPipe/exfig --skill openspec-explore
Clone the repo
git clone --depth 1 https://github.com/DesignPipe/exfig

Made for: Claude Code, Codex.

Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,157 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 88% copy Near-identical to another mod 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 $0.00039 $0.02157
Opus 5 $0.00019 $0.01078
Sonnet 5 $0.00008 $0.00431
Haiku 4.5 $0.00004 $0.00216

Measured 2d ago against content hash 64ded43c11f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openspec-explore 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 2d 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.

Origin

This is a copy

88% identical to openspec-explore — 47 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/openspec-explore/SKILL.md · 291 lines

How it starts

The opening of the file, as written. The whole thing — 291 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Enter explore mode. Think deeply. Visualize freely. Follow the conversation wherever it goes.

IMPORTANT: Explore mode is for thinking, not implementing. You may read files, search code, and investigate the codebase, but you must NEVER write code or implement features. If the user asks you to implement something, remind them to exit explore mode first (e.g., start a change with /opsx:new or /opsx:ff). You MAY create OpenSpec artifacts (proposals, designs, specs) if the user asks—that's capturing thinking, not implementing.

This is a stance, not a workflow. There are no fixed steps, no required sequence, no mandatory outputs. You're a thinking partner helping the user explore.


The Stance

  • Curious, not prescriptive - Ask questions that emerge naturally, don't follow a script
  • Open threads, not interrogations - Surface multiple interesting directions and let the user follow what resonates. Don't funnel them through a single path of questions.
  • Visual - Use ASCII diagrams liberally when they'd help clarify thinking
  • Adaptive - Follow interesting threads, pivot when new information emerges
  • Patient - Don't rush to conclusions, let the shape of the problem emerge
  • Grounded - Explore the actual codebase when relevant, don't just theorize

What You Might Do

Depending on what the user brings, you might:

Explore the problem space

  • Ask clarifying questions that emerge from what they said
  • Challenge assumptions
  • Reframe the problem
  • Find analogies

Investigate the codebase

  • Map existing architecture relevant to the discussion
  • Find integration points
  • Identify patterns already in use
  • Surface hidden complexity

Compare options

  • Brainstorm multiple approaches
  • Build comparison tables
  • Sketch tradeoffs
  • Recommend a path (if asked)

Visualize

┌─────────────────────────────────────────┐
│     Use ASCII diagrams liberally        │
├─────────────────────────────────────────┤
│                                         │
│   ┌────────┐         ┌────────┐        │
│   │ State  │────────▶│ State  │        │
│   │   A    │         │   B    │        │
│   └────────┘         └────────┘        │
│                                         │
│   System diagrams, state machines,      │
│   data flows, architecture sketches,    │
│   dependency graphs, comparison tables  │
│                                         │
└─────────────────────────────────────────┘

Read the full file on GitHub · 291 lines

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. 2d ago First seen · 291 lines · 39 tokens per session scan A 64ded43c11f4

Subscribe to this mod's changes

openspec-explore is a skill published in the GitHub repository DesignPipe/exfig (10 stars, last pushed 1mo ago), licensed MIT. It adds 39 tokens to every session and 2,157 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to openspec-explore, differing in 47 lines, and is treated as a copy.

Related

Other skills, from other repositories

update-store

ストア情報の更新自動化 — スクリーンショット撮影(シミュレーター × モック画面 × Marionette MCP)とメタデータテキスト更新。ストア更新、スクショ更新、App Store / Google Play のメタデータ更新、リリースノート作成の際に使用すること。.

K9i-0/ccpocket · 80 tokens

mobile-automation

MCP (dart-mcp + Marionette) を使ったFlutterアプリのE2E自動化・UI検証ガイド。シミュレーターでのUI動作確認、モックプレビュー検証、Bridge経由のE2Eテスト、スクリーンショット撮影など、アプリの動作検証が必要なときに使う。「動作確認して」「UIを検証して」「E2Eテスト」「シミュレーターで確認」「モックで確認」と言われたときや、UI変更後の検証フェーズで使用すること。.

K9i-0/ccpocket · 138 tokens

submit-store-review

App Store Connect・Google Playの現在の公開版をAPIで調べ、既存の最新安定ビルドとの差分から4言語のリリースノートを作成し、CLI/APIで審査へ提出・再提出する。新しいビルドを作るrelease-appとは分離し、「最新を審査提出して」「ストア審査へ提出して」「App Reviewに出して」「Google Playの審査を進めて」「却下対応して再提出して」と依頼されたときに使用する。.

K9i-0/ccpocket · 126 tokens

triage

Skill "triage" from K9i-0/ccpocket, covering issue / pr triage, 原則, phase 0: 種別判定, prフロー and phase 1: intake / ready判定.

K9i-0/ccpocket · 101 tokens

flutter-ui-design

SSOT (Single Source of Truth) + UDF (Unidirectional Data Flow) に基づく設計。.

K9i-0/ccpocket · 36 tokens

release-app

アプリのリリース(バージョンbump + CHANGELOG + タグ → GH Actions で自動ビルド・配布)。iOS / Android / macOS / Linux / Windows の任意の組み合わせでリリースできる。「リリース」「バージョン上げて」「リリースして」と言われたときに使う。.

K9i-0/ccpocket · 87 tokens