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Use when reviewing public or queryable Trails outputs that expose union-like shapes to agents or surfaces. Helps decide whether stable discriminants are required and whether the issue is schema cleanup, advisory guidance, or Warden work.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Trails framework co-architect & CTO persona — constitutional hierarchy, drift guard, vocabulary enforcement, and architectural judgment. Use when evaluating Trails architecture, enforcing vocabulary, reviewing framework coherence, or when Clark's judgment is needed on a Trails question.
Trails framework co-architect & CTO persona — constitutional hierarchy, drift guard, vocabulary enforcement, and architectural judgment. Use when evaluating Trails architecture, enforcing vocabulary, reviewing framework coherence, or when Clark's judgment is needed on a Trails question.
Build with the Trails framework — define trail contracts, open CLI/MCP surfaces, test with examples, debug errors, migrate codebases, run governance. Use when creating trails, adding surfaces, testing, debugging Trails errors, migrating to Trails, running warden, or any work involving @ontrails/* packages.
Author, update, and manage Trails ADRs. Use when creating new ADRs, promoting drafts to accepted, updating the ADR index, renaming or renumbering ADRs, or when the user mentions ADR, architecture decision, or decision record.
Complete Trails editorial review workflow. Use when reviewing docs, ADRs, README changes, release notes, agent guidance, or docs-heavy PRs for voice, style, structure, correctness, and readiness.
Trails documentation structure and maintenance guidance. Use when creating or reorganizing Trails docs, READMEs, guides, reference pages, release docs, or agent-facing documentation.
| name | trails-discriminate-union |
| description | Use when reviewing public or queryable Trails outputs that expose union-like shapes to agents or surfaces. Helps decide whether stable discriminants are required and whether the issue is schema cleanup, advisory guidance, or Warden work. |
Use this skill when a trail output, projection, query response, or public schema has multiple object-like branches that consumers must distinguish.
kind, mode, type, or another owner-approved field.packages/core/src/validation.tsz.union(...) without proving it reaches a public or queryable output.Return: