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Tom Boucher 197d6bffe2 docs(#894): ADR-894 Capability declaration format + registry generation (#895)
* docs(#894): ADR-894 Capability declaration format + registry generation

ADR-857 rollout phase 3a (design-only). Resolve ADR-857's deferred open
question — the on-disk Capability declaration format — as a reviewable design
ADR before any generator code.

Specifies: the capabilities/<id>/capability.json folder layout (migration-staged
ownership — declarations reference existing stems until the phase-6 move); the
capability.json schema for role:feature (skills/agents/hooks/federated config/
loopHooks) and role:runtime (the six closed projection-primitive axes); the 12
named Loop Extension Points; the gen-capability-registry.cjs generator design
(validation + cross-capability invariants + --write/--check drift gate, mirroring
gen-inventory-manifest); the generated capability-registry.cjs shape (by-id /
by-skill / by-loop-point indexes + requires-closure); and a full worked example
(the UI capability: ui-phase + ui-review + agents + config + two loop hooks).

No code — design artifact only; the generator build, federated config loader
(3b), and loop seam (3c) implement against this contract.

Closes #894

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* docs(#894): amend ADR-894 with grilled capability declaration format

Stress-tested the declaration format before merge; the format changed
materially. Amendments:
- loopHooks[] -> three typed arrays (steps/contributions/gates), each with its
  own shape (step: ref+produces/consumes; contribution: fragment+into agent-role;
  gate: check+blocking).
- Add the Loop Host Contract (§3): each step publishes its points, agent roles,
  and core artifacts so the generator validates hooks against reality, not
  trusted strings.
- requires = capability ids only (host implicit); add tier-monotone invariant;
  drop the requires:["plan"] error from the example.
- Config federation = atomic move: a migrated key leaves the central schema in
  the same PR; presence in both is a collision (invariant stays).
- One registry, role-partitioned indexes (feature indexes vs runtimes index).
- Rework the UI worked example to the split-array shape (2 steps + 1 gate) +
  a contribution illustration.

Adds a "Grilling amendments" section recording the six changes.

* docs(#894): amend ADR-894 with round-2 grilling (operational reality)

Second design-grill round, folded in before merge:
- Loop Host Contract is GENERATED from structured workflow markers
  (<loop-point>/<agent-role>/<loop-artifact>) via gen-loop-host-contract.cjs —
  it can't drift from the real workflows.
- Hook activation `when`: cheap deterministic config-level gating evaluated by
  loop.render-hooks; deeper phase-context applicability self-gates inside the
  dispatched skill (no phase-context vocabulary to keep honest).
- `tier` is the source of install-profile + cluster membership; profiles and
  clusters are generated from tier + requires-closure (/gsd:surface operates on
  capabilities) — collapses ADR-857's multiple toggle systems.
- Gate `check` = query | declarative-predicate | agentVerdict; agentVerdict is
  forced advisory; only deterministic checks may block.
- byLoopPoint ordering is materialized in the registry; render-hooks filters the
  active set + renders. Same-capability hooks degrade gracefully when an entry
  step self-gates.
- Rollout: registry-only until atomic per-feature cutover (no double-execution
  with still-inlined workflow features).

Updates the Grilling amendments / Consequences / Alternatives / Open questions
sections; reworks the UI example with `when`.

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-08 18:51:20 -04:00
..

GSD Core documentation

Documentation is organised into four quadrants: tutorials help you learn by doing, how-to guides solve specific tasks, reference states authoritative facts, and explanation explores concepts and design decisions.

Language versions: English · Português (pt-BR) · 日本語 · 简体中文


Tutorials


How-to guides


Reference

  • Commands — every command with flags and examples
  • Configuration — full config schema, model profiles, git branching strategies
  • CLI tools — gsd-tools.cjs programmatic API for workflows and agents
  • Features — complete feature index
  • Inventory — installed skills and surface map
  • STATE.md schema — field-by-field reference for .planning/STATE.md
  • CONTEXT.md schema — field-by-field reference for .planning/phases/<N>/CONTEXT.md
  • PLAN.md schema — field-by-field reference for .planning/phases/<N>/PLAN.md
  • Planning artifacts — all .planning/ files and their roles

Explanation


  • Root README — landing page, quickstart, and documentation overview
  • Changelog — release history