0be354a920
Single-commit clean baseline after security scrub of niche-tells, project codenames, internal jargon, and contributor-email leaks. Contents: - 100 Rust crates (_primitives/_rust/) - 37 agent manifests (_manifests/) + generated specs (_generated/) - 67 user-invocable skills (skills/) - 33 hooks (hooks/) - Composition blocks (_blocks/) - Documentation (docs/, README.md) - TS adapter packages (_ts_packages/) - Assembler (_assembler/) - Roles (_roles/) - Templates (_templates/) - Forgejo CI (.forgejo/) Author: Denis Parfionovich <info@greendragon.info> License: see LICENSE.
111 lines
4.8 KiB
Markdown
111 lines
4.8 KiB
Markdown
# Phase 4 — Versioning strategy
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Decide how the API evolves when backwards-incompatible changes happen.
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Reference: `_blocks/api-versioning-pagination-ratelimit.md`. Fail-closed
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bias — if the user is unsure, the skill defaults to URL-path versioning
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(most visible, hardest to break silently).
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## 4a — Strategy click (AskUserQuestion, single-select)
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```json
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{
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"questions": [
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{
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"question": "Versioning strategy?",
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"header": "Versioning",
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"multiSelect": false,
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"options": [
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{"label": "URL path (/v1, /v2)",
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"description": "Most visible, curl-friendly, easy CDN routing. Coarse version bumps. GitHub v3/v4, public REST default."},
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{"label": "Header (media type, Accept: application/vnd.example.v2+json)",
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"description": "Clean URLs. Internal or typed-SDK-only APIs. Requires disciplined clients."},
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{"label": "Date-based (Stripe-Version: 2025-11-01)",
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"description": "Fine-grained; every breaking change pinnable. Keep N-1 versions live. Use for pay-for-stability APIs."},
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{"label": "Additive-only (no versioning, promise to never break)",
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"description": "Simplest. ONLY with small disciplined teams + strong typing + <3 consumers. Risk: one accidental break kills trust."},
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{"label": "GraphQL evolution (no version, @deprecated + telemetry)",
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"description": "Schema grows forever; remove fields after telemetry shows 0 usage. Required for GraphQL-only APIs."}
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]
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}
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]
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}
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```
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Store as `VERSIONING`. Gate on `STYLE` from Phase 1:
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- `STYLE = GraphQL` → only `GraphQL evolution` is correct. If user picks
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anything else, STOP and re-ask with a one-line explanation.
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- `STYLE = REST` → any of URL / Header / Date / Additive.
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- `STYLE = gRPC` → versioning usually package-based (`example.v1`,
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`example.v2`); record as `url-path`-equivalent and note in final report.
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- `STYLE = tRPC` → additive-only is typical; record as `additive-only`.
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## 4b — Deprecation runway click (AskUserQuestion, single-select)
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Only if `VERSIONING != additive-only` AND `VERSIONING != GraphQL evolution`.
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```json
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{
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"questions": [
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{
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"question": "Minimum deprecation runway for breaking changes?",
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"header": "Deprecation runway",
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"multiSelect": false,
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"options": [
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{"label": "6 months (RECOMMENDED for public APIs)",
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"description": "Industry standard (Stripe, GitHub). Deprecation + Sunset headers + changelog + migration guide."},
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{"label": "12 months",
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"description": "Regulated / enterprise partners. SLA-backed."},
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{"label": "3 months",
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"description": "Acceptable for partner or internal APIs where consumers are known and reachable."},
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{"label": "Same-day (internal only)",
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"description": "Inside the mesh; all callers are your own services. Still emit Sunset header for audit."}
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]
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}
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]
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}
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```
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Store as `DEPRECATION_MONTHS`. Block "Same-day" if `AUDIENCE = public`
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(fail-closed NO DOWNGRADE — re-offer 3 / 6 / 12 with a one-line warning).
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## 4c — Emit deprecation headers snippet (inline, no AskUserQuestion)
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Print the standards-track header contract — RFC 8594 (Sunset) + RFC 9745
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(Deprecation, 2024):
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```http
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Deprecation: @1735689600 # Unix timestamp of deprecation
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Sunset: Wed, 11 Nov 2026 00:00:00 GMT
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Link: <https://api.example.com/migration-v2-to-v3>; rel="deprecation"
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```
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- `Deprecation` — when the endpoint became deprecated (past or future).
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- `Sunset` — when it will be removed. `Sunset - Deprecation ≥ DEPRECATION_MONTHS`.
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- `Link rel="deprecation"` — URL of the migration guide.
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For `VERSIONING = GraphQL evolution`: replace with SDL directive
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`@deprecated(reason: "Use field X — removed after 2026-11-01")` and the
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removal rule ("remove only after telemetry shows 0 usage for ≥30 days").
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## 4d — Emit changelog + telemetry obligations (inline)
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For any non-trivial versioning choice, print:
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- **Changelog location:** `docs/api/CHANGELOG.md` or `/changelog` endpoint
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on the API itself. Entries: date, version, breaking/non-breaking,
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migration link.
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- **Telemetry obligations:** log the version used on every request
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(`api_version` field); alert when a deprecated version's usage does not
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trend down. Without telemetry, "deprecation" is a lie.
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- **Versioning + pagination cross-cut:** cursor tokens MUST be opaque and
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treated as versioned data (base64 of signed JSON); don't let a v1 cursor
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accidentally work in v2 with different fields.
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## Verify-criterion
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- `VERSIONING` exactly one choice, compatible with `STYLE`.
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- `DEPRECATION_MONTHS` set (or N/A for additive-only / GraphQL evolution).
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- Deprecation header snippet (4c) printed.
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- Changelog + telemetry obligations (4d) printed as a checklist.
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- If `AUDIENCE = public` and `DEPRECATION_MONTHS < 3` → STOP and re-ask.
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