Spectre plugin for Codex
Spectre is a battle-tested 6 stage agentic engineering workflow for building complex, production-ready features. You stay in the loop for the decisions that matter. Your agents handle the the rest. One command to start building - /spectre:scope
How to install Spectre in Codex
1. Add the repo as a Codex plugin marketplace:
codex plugin marketplace add joenandez/spectre2. Install the plugin from it:
codex plugin add spectre@spectreThis repo ships a Codex marketplace file (.agents/plugins/marketplace.json). The first command adds it as a marketplace (Codex CLI reference); the second installs the plugin 'spectre'. 'spectre' is the marketplace name from that file. Check the repo README too. Command format: Codex CLI reference.
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What it contains
Plugins in this marketplace (1)
spectre— Contract-driven agentic coding workflow for Claude Code and Codex.
About this listing
Spectre is a community plugin on GitHub by joenandez. Its README documents a Codex install and the repo ships a Codex plugin manifest. It passed the CodexStacks quality filter for repos found this way (at least 100 stars, pushed in the last 90 days, not a fork or a list). OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 25, 2026 (an install and load check, not a code review). From its files we found 1 plugin. It's one of 441 listings in the Developer Tools category (category assigned by CodexStacks from the repo's topics and description).
Spectre FAQ
How do I install Spectre in Codex?
Add the repo as a Codex plugin marketplace with codex plugin marketplace add joenandez/spectre, then install it with codex plugin add spectre@spectre. Commands: the command format from the Codex CLI reference; check the repo README too.
Is Spectre an official Codex plugin?
No. Spectre is a community repo on GitHub by joenandez. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it, but it passed our Codex install check on Oct 25, 2026 (an install and load check, not a code review), so read the code before you install it.
What does Spectre include?
From its manifest and repo files, Spectre includes 1 plugin: spectre.
Details
- Type
- Plugin
- Category
- Developer Tools (assigned by us)
- Source
- Community
- Author
- joenandez
- License
- MIT
- GitHub stars
- 164 (at last sync)
- Last push
- 2026-10-02
- Manifest
.agents/plugins/marketplace.json- Source
- https://github.com/joenandez/spectre
- Listed via
- GitHub search: README documents a Codex install
- Install check by CodexStacks
- Passed on Oct 25, 2026 with Codex CLI 0.163.0: Codex loaded its skills. proof · how we check
Something wrong or missing? Submit or improve this listing. Listings also refresh automatically every night.
For maintainers: badge and embeds
Maintain Spectre? Add the badge; it links to this page.
Markdown
[](https://codexstacks.com/p/spectre/)HTML
<a href="https://codexstacks.com/p/spectre/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/spectre/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Spectre</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex plugin · 1 plugin</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Spectre is a battle-tested 6 stage agentic engineering workflow for building complex, production-ready features. You…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Spectre on CodexStacks](https://codexstacks.com/p/spectre/)**: Community Codex plugin with 1 plugin.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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