upstream-twenty/packages/twenty-agent-skills/CHECKLIST.md

Twenty Codex Plugin — Best Practices Compliance Checklist

This file is the authoritative compliance matrix. Every row maps an official requirement (Codex build guide, Codex best-practices guide, or OpenAI reference implementation) to either an automated check (a scripts/validate-source.js assertion function) or a manual sign-off.

A release is shippable when:

1. npx nx run twenty-agent-skills:validate and npx nx run twenty-agent-skills:build exit 0 (source and distribution checks pass).
2. Every [manual] row has a current sign-off date.

Sources of Truth

• Codex Plugin Build Guide — https://developers.openai.com/codex/plugins/build
• Codex Best Practices — https://developers.openai.com/codex/learn/best-practices
• Reference Implementation — https://github.com/openai/codex-plugin-cc

Plugin Manifest (.codex-plugin/plugin.json)

#	Requirement	Source	Check
M1	name present, kebab-case, lowercase	Build guide §Naming	[automated] assertJsonMetadata
M2	version follows SemVer and matches package.json	Build guide §Manifest	[automated] assertJsonMetadata
M3	description present and concise	Build guide §Required fields	[automated] assertInterfaceFields (planned)
M4	mcpServers points at ./.mcp.json	Build guide §MCP	[automated] assertJsonMetadata
M5	skills points at ./skills/	Build guide §Skills	[automated] assertJsonMetadata
M6	interface.displayName present and non-empty	Build guide §Interface	[automated] assertInterfaceFields (planned)
M7	interface.shortDescription ≤ 64 chars	Build guide §Marketplace	[automated] assertInterfaceFields (planned)
M8	interface.longDescription present, multi-sentence	Build guide §Marketplace	[automated] assertInterfaceFields (planned)
M9	interface.category matches marketplace enum (Coding)	Build guide §Marketplace	[automated] assertInterfaceFields (planned)
M10	interface.capabilities non-empty subset of Interactive,Read,Write	Build guide §Capabilities	[automated] assertInterfaceFields (planned)
M11	interface.websiteURL, privacyPolicyURL, termsOfServiceURL present	Build guide §Publisher links	[automated] assertInterfaceFields (planned)
M12	interface.brandColor matches #RRGGBB and reflects Twenty brand	Build guide §Marketplace	[automated] assertInterfaceFields (planned), [manual] brand alignment
M13	interface.defaultPrompt is a non-empty array of strings	Build guide §Defaults	[automated] assertInterfaceFields (planned)
M14	All manifest paths start with ./ and stay within plugin root	Build guide §Paths	[automated] assertJsonMetadata

Assets (assets/)

#	Requirement	Source	Check
A1	interface.logo exists and is PNG	Build guide §Assets	[automated] assertAssets (planned)
A2	Logo PNG is ≥ 256×256	Build guide §Assets	[automated] assertAssets (planned, PNG IHDR parse)
A3	interface.composerIcon exists and is valid SVG or PNG	Build guide §Assets	[automated] assertAssets (planned)
A4	interface.screenshots has ≥ 1 entry	Build guide §Assets	[automated] assertAssets (planned)
A5	Every screenshot path exists and is PNG	Build guide §Assets	[automated] assertAssets (planned)
A6	Screenshots show the plugin in action (not placeholder mocks)	Build guide §Marketplace	[manual] reviewer sign-off

Skills (skills/<name>/SKILL.md)

#	Requirement	Source	Check
S1	Canonical five skills present	Internal convention	[automated] assertSkills
S2	No legacy skill names anywhere	Internal convention	[automated] assertNoLegacySkillReferences
S3	Each SKILL.md has YAML frontmatter with name + description only	Build guide §Skills	[automated] assertSkills
S4	Frontmatter name matches directory	Build guide §Skills	[automated] assertSkills
S5	Each skill has agents/openai.yaml with display_name, short_description (≤64), default_prompt (mentions $<skill>)	OpenAI Agent format	[automated] assertSkills
S6	Each skill is scoped to a single job with clear boundaries	Best practices §Skill scope	[manual] cross-skill audit
S7	Each skill includes a ## When to use trigger-phrase section	Best practices §Descriptions	[automated] assertSkillTriggerPhrases (planned)
S8	Descriptions are disjoint across skills (no routing collision)	Best practices §Descriptions	[manual] cross-skill audit

References (references/)

#	Requirement	Source	Check
R1	All required reference files exist	Internal convention	[automated] assertReferences
R2	use-twenty-mcp formatting contract intact across SKILL.md and result-formatting.md	Internal convention	[automated] assertTwentyMcpFormattingContract
R3	Front component guidance correctly split across develop-app skill, layout.md, front-components.md, standalone-pages.md, app-structure.md, front-component-ui.md	Internal convention	[automated] assertFrontComponentGuidance
R4	CLI guidance correctly split between develop-app and manage-app	Internal convention	[automated] assertCliGuidanceSplit
R5	concepts/how-apps-work.md is foundational and linked from every skill	Internal convention	[automated] assertHowAppsWork

MCP (.mcp.json and scripts/setup-mcp.sh)

#	Requirement	Source	Check
MCP1	.mcp.json declares only the public twenty-docs server	Internal convention	[automated] assertJsonMetadata
MCP2	No workspace-specific MCP configs bundled anywhere	Internal convention	[automated] assertNoBundledMcpConfig
MCP3	No bearer tokens or API keys anywhere in the package	Build guide §Security	[automated] assertNoBundledMcpConfig
MCP4	No non-placeholder URLs in any file	Internal convention	[automated] assertNoBundledMcpConfig
MCP5	scripts/setup-mcp.sh passes bash -n syntax check	Internal convention	[automated] assertSetupHelper
MCP6	setup-mcp.sh correctly normalizes representative URLs	Internal convention	[automated] assertSetupHelper

Marketplace & Distribution

#	Requirement	Source	Check
D1	templates/marketplace.example.json has marketplace identity, plugin name/category, a local distribution source, and valid policies	Codex marketplace schema	[automated] assertMarketplaceTemplate
D2	Optional repo-level .agents/plugins/marketplace.json points at ./packages/twenty-agent-skills/dist	Build guide §Distribution	[automated] assertJsonMetadata
D3	CHANGELOG.md updated for every version bump	Reference impl	[manual] release reviewer sign-off

Process

#	Requirement	Source	Check
P1	validate-source.js runs in CI on every PR touching the plugin	Reference impl	[manual] confirm .github/workflows/ci-agent-skills.yaml is active
P2	validate-source.js has its own unit tests	Internal convention	[manual] confirm scripts/__tests__/ exists and runs
P3	Version bump procedure documented	Internal convention	[manual] confirm CONTRIBUTING.md covers it

Manual Sign-off Log

When a manual row above is verified, add a line here.

Date	Row(s)	Reviewer	Notes
2026-05-28	S6, S8	Codex plugin compliance pass	Skill descriptions reviewed side-by-side; "When To Use" sections added to all five SKILL.md files with explicit "do not use this skill for X" boundary callouts referencing the four siblings. Routing surface is disjoint.
2026-05-28	M12	Codex plugin compliance pass	brandColor: #000000 matches the actual logo background in assets/twenty-logo.svg.

Deferred Items

Tracked for a follow-up PR; not blocking the current release.

Item	Reason for deferral
Real marketplace screenshots (A4, A5, A6)	Requires real captures against a demo workspace. assets/screenshots/README.md documents what's needed; plugin.json screenshots stays [] until the PNGs land so assertAssets does not regress.
Splitting standalone-pages.md / front-component-ui.md	The cross-doc contracts assert dozens of exact fragments per file. The mechanical risk of fragment drift outweighs the readability gain at current size (~450 lines each). Re-evaluate when either exceeds 600 lines.
hooks/hooks.json SessionStart hook	The Codex hook schema for plugin-bundled hooks needs deeper validation; a misconfigured SessionStart hook would fire on every Codex session. Add only when the format is verified against a working reference implementation.