67a9243cf1
* chore: rebuild ADR index as a generated artifact and enforce lifecycle invariants
The ADR index in docs/adr/README.md was hand-maintained with nothing checking
it, and had drifted to 40 of 65 ADRs. The absent rows included the entire
capability family (857/894/959/1016/1143/1213/1244) and ADR-1239 (EoS) itself,
so the decisions a reader most needed were the ones they could not find.
Make the index a derived artifact, matching the repo's existing generated-file
idiom (lint:generated-sync), and enforce the corpus' lifecycle invariants:
- scripts/gen-adr-index.cjs generates the index between markers and validates
the status vocabulary (Accepted/Proposed/Superseded/Legacy/Retired),
successor links, id/filename agreement, and supersession symmetry.
- Wire --check into lint:generated-sync so drift fails CI.
Correct the lifecycle metadata the gate surfaced, without flipping any status:
- ADR-1239 (EoS) declared it subsumed ADR-1016/58/3660/894; none recorded it.
Add reciprocal "Subsumed by" pointers + dated amendments. Subsumption keeps
the target Accepted -- these are live adapters, not dead decisions.
- ADR-857/894 carry dated status caveats: they read Proposed while the
capability system shipped and epic #857 is closed. Ratification is a
maintainer act and is deliberately left open.
- Link ADR-0005/0007/0012/3524 -> ADR-0174 and ADR-0010 -> ADR-0009; record
the reciprocal Supersedes on ADR-0009.
- ADR-218 declared itself "ADR-0175" -- an unfinished rename.
- The 0011 PRD moves from the non-canonical "Draft" to "Legacy".
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* test: capture stderr via spawnSync; record ADR-0010 draft supersession
Two fixes surfaced by the first gsd-test run and by regenerating the index:
- tests/adr-index-gate.test.cjs used execFileSync, which only surfaces stderr
through the thrown error on non-zero exit. The `--write` path exits 0 while
reporting outstanding violations on stderr, so the helper always saw ''.
spawnSync captures both streams on both outcomes.
- The hand-maintained index recorded 0010-skill-surface-budget-module.md as
"earlier draft superseded by ADR-0011" while the file itself still said
Proposed. Deriving the index from the files would have dropped that
assertion and resurrected a superseded draft as a live decision, so it is
recorded at its source, with the reciprocal Supersedes on ADR-0011.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix: drop the dead sdk/ model-catalog candidate retired by ADR-0174
src/model-catalog.cts resolved model-catalog.json through three candidates, the
second being sdk/shared/model-catalog.json three levels up. That was the legacy
source-repo fallback kept by the #3288 fix ("check the co-located path FIRST,
before the legacy source-repo path").
ADR-0174 then retired the @opengsd/gsd-sdk package boundary and deleted the sdk/
tree (11918dcc3), so the candidate can no longer resolve in any layout: a source
repo has no sdk/, and an install layout points it at ~/.claude/sdk/shared/, which
the installer never writes -- the original #3288 bug. It was dead weight implying
a package boundary this repo no longer has.
No test depends on it: the #3288 regression tests in tests/install.test.cjs write
their own synthetic old-path fixture and assert it throws.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* docs: ratify nine shipped ADRs; record why ten others stay Proposed
The corpus carried 19 Proposed ADRs, most describing architecture that had
already shipped. A Proposed label on live architecture tells contributors and
agents the decision is an unbuilt idea -- the capability system and EoS were
both being misread that way.
Audited all 19 against the shipped tree and GitHub. Each candidate flip then had
to survive two independent reviewers instructed to refute it.
Ratified Proposed -> Accepted, each with a dated Ratification section carrying
the verified evidence (file:line, symbols, tests, issue state):
857 capability system 894 declaration format 1244 capability ecosystem
1577 injection boundary 1610 size-budget ratchet 1990 existing-code onboarding
15 cross-AI convergence 22 plan-drift guard 0011 default reviewers
Held ten, each now carrying a "Why this is still Proposed" section naming the
blocker and its unblock condition, so the audit is not repeated:
2264 its own headline acceptance criterion is unmet in the tree
230 live branch protection contradicts the decided spec (1 approval, not 2)
660 the namesake release/<version> re-cut is manual, not automated
959 issue #2346 is approved and plans its graduation as its own ADR
1213 the shipped writer's return shape differs from the decided interface
443 the orchestrator override path has no live caller
1143 / 1606 each states its own bar for acceptance; neither is met
612 / 1671 legitimately open
Shipped code proved necessary but not sufficient: eight ADRs had every named
module, symbol, and test present with their epics closed, and still failed the
bar. That lesson is written into README.md's ratification procedure.
Also corrected ADR-857's "Supersedes (generalizes)" to "Subsumes": taken
literally it would have marked two live seams dead -- ADR-0011 (surface.cts:348)
and ADR-58 (runtime-artifact-install-plan.cts:82). Both keep Accepted status and
gain Subsumed-by pointers.
Index: Active 39->48, Proposed 19->10, Superseded/Legacy 7. 65 total.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix: harden gen-adr-index against hostile titles and non-ADR filenames (#2356)
Three findings from the pre-PR orthogonal security review, all confirmed:
- An ADR title containing the literal ADR-INDEX:END marker was emitted verbatim
into its table cell, relocating the splice boundary so the NEXT --write
spliced against the wrong marker and truncated README.md. Titles now render
through cellText(), which escapes pipes and angle brackets -- making an HTML
comment (and any other HTML) unformable from ADR-authored text.
- A docs/adr/*.md without a numeric prefix crashed on match(...)[1] of null.
Such a file is also invisible to the index -- the very failure this gate
exists to prevent -- so it is now reported as a naming-convention violation
naming the file and the fix.
- Tests leaked their mkdtemp dirs. They now use helpers.createTempDir/cleanup
via t.after(); helpers.cleanup carries the Windows-EBUSY retry budget that a
raw fs.rmSync lacks (caught by local/no-raw-rmsync-in-tests).
Adds five regression tests: marker hijack, HTML injection, pipe cell-break,
non-conforming filename, and splice stability across repeated writes.
Refs #2356
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix: close two gate false-passes; read ## Supersedes sections (#2356)
Second round of confirmed findings from the pre-PR orthogonal code review. Both
false-passes matter more than a false-fail: a gate that silently misses a
violation is worse than no gate, because it is trusted.
- A relation field mixing a link with a bare id silently dropped the bare claim:
the check tested `rel.links.length` (does this field have ANY link?) instead
of whether THAT id was linked. `Supersedes: [ADR-0001](...), ADR-0011` passed
clean -- accepting exactly the ambiguous bare reference the rule forbids. Now
each bare id is checked against the ids actually linked in the same field, so
a repeat in trailing prose stays quiet while an unlinked claim is flagged.
- The ratification guard (`statusToken !== 'Accepted'`) skipped BOTH relation
directions, which killed the IN check entirely: `supersedes.in` is only ever
populated on an ADR whose status IS `Superseded`, so a dangling `Superseded by
X` where X never claims it always passed. The guard now applies to OUT only --
a prospective claim must not obligate its target, but an ADR's statement about
ITSELF is always owed a reciprocal.
- Fixing that surfaced a parser gap: ADR-0174 declares its supersessions in a
`## Supersedes` table SECTION, not a header field, and headerBlock() stops at
the first `##`. The repo's best-documented supersession was invisible. Section
form is now parsed for both relations.
- Replaced a vacuous test: the em-dash negation case passed whether or not
NEGATED_RELATION_RE matched (a mutation to /$^/ survived). It now carries a
link that would create a failing asymmetric relation if negation did not fire.
Also removes docs/adr/9401-test-target.md -- a synthetic fixture a reviewer
created in the worktree while reproducing a finding, swept in by `git add -A`.
Adds regression tests for each: mixed link+bare, linked-and-repeated-in-prose,
dangling superseded-by from a non-Accepted ADR, and the ADR-0174 section shape.
Refs #2356
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix: escape backslashes before pipes in the ADR index cell renderer (#2356)
CodeQL js/incomplete-sanitization (high) on scripts/gen-adr-index.cjs: cellText()
escaped `|` -> `\|` without first escaping the backslash. Markdown's escape
character is the backslash, so the input `\|` became `\\|`, which renders as a
literal backslash followed by an UNESCAPED pipe -- re-opening the cell break the
pipe escape exists to prevent. Order is load-bearing: escape the escape
character first, then everything that emits one.
Same class as the index-marker hijack fixed earlier: ADR-authored text breaking
out of the cell it is rendered into.
Adds a regression test asserting a `\|`-bearing title leaves exactly the row's
own 5 unescaped delimiters and cannot forge a Status cell. Uses split(/\r?\n/)
per local/no-crlf-fragile-split -- a literal "\n" split is CRLF-fragile on the
Windows CI leg.
Refs #2356
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
22 KiB
Architecture Decision Records
This directory contains Architecture Decision Records (ADRs) for GSD.
Each ADR documents one architectural decision: what was decided, why, and what consequences follow. ADRs are append-only. Amendments extend existing ADRs with a dated section rather than replacing them.
Reading this corpus
Start with the index below, and respect the status. The index is grouped so that the first table — Active decisions — is the set that governs the system as it stands. An ADR in Superseded, Retired, and Legacy is historical: it records what was once decided and names what replaced it. Do not cite it as current architecture.
Two things the index makes explicit, because getting them wrong has actually misled readers here:
- "Read first" on an active ADR points at a broader ADR that now frames it. A decision can be entirely correct and still not be the whole picture. The runtime capability descriptor (ADR-1016) is live and load-bearing, but ADR-1239 (EoS — GSD as an Embeddable Orchestration Engine) subsumes it as the declarative adapter and inverts its direction: GSD is the engine a host embeds, not an installer that projects onto a host. For how GSD meets a host, EoS is the current frame.
Proposedmeans not ratified — and it is kept honest. On 2026-07-17 the corpus was audited against the shipped tree and nine ADRs whose decisions had demonstrably shipped were ratified toAccepted, each carrying a dated Ratification section with the evidence (see ADR-857 for the fullest example). The ADRs that remainProposedareProposedfor a reason recorded in the file — an unmet acceptance criterion, an outstanding phase, or a successor ADR already planned — not through neglect. Trust the label; if you think it is wrong, prove it in a dated section and see Ratifying a staleProposed.
Naming Convention
New ADRs use issue#-prefix slug naming:
docs/adr/<issue#>-<kebab-slug>.md
Examples: 2264-golden-parity-redesign.md, 1239-gsd-embeddable-orchestration-engine.md.
Why
Two developers computing "next ADR number" locally against main will independently pick the same integer and both ship. The collision is already on disk — 0010-* exists twice and 0011-* exists three times. GitHub issue numbers are server-assigned and atomic: the moment you open an issue, that number is reserved globally. Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — two PRs that each use a distinct issue# as their ADR prefix never collide. Same shape, same solution.
Legacy naming is not Legacy status
Files 0001-* through 0012-* (and 0174-*) are preserved as immutable historical record of the old local-compute numbering. The duplicate 0010-* and the three-way 0011-* are documented residue of that convention — not patterns to imitate. Do not renumber them.
This is a statement about filenames only. Many of those ADRs are Accepted and load-bearing today (ADR-0002, ADR-0004, ADR-0008, ADR-0009). An old filename says nothing about whether a decision still holds. The Legacy status in the table below is a separate claim — see the vocabulary.
Because 0010-* and 0011-* each resolve to more than one file, a bare cross-reference like "ADR-0011" is genuinely ambiguous. Link the file (see Lifecycle rules).
Full process
See CONTRIBUTING.md — "Proposing an ADR or PRD" for the end-to-end workflow: opening the issue, waiting for approval, naming the file, and submitting the PR.
PRDs live in docs/prd/, not here. (0011-review-default-reviewers-prd.md predates that directory and is kept in place as frozen historical record.)
Lifecycle rules
These are enforced by scripts/gen-adr-index.cjs, which runs in CI via npm run lint:generated-sync. A violation fails the build with the exact file and fix.
1. Every ADR declares one status from the canonical vocabulary
The first word of the Status field must be one of:
| Status | Means | Obligation |
|---|---|---|
Accepted |
Decided and in force. Cite it. | — |
Proposed |
Decided in principle, not ratified. Do not cite as settled. | If the work has demonstrably shipped, ratify it (below) — do not leave the label lying. |
Superseded |
A specific newer ADR replaced this decision. | Must name the successor as a file link. |
Retired |
What this ADR decided no longer exists at all, and no single ADR replaced it. | Say what was removed and when. |
Legacy |
Frozen historical record, kept for provenance; not a pattern to follow. | Say why it is frozen. |
Prose may follow the token (Superseded by [ADR-0174](0174-retire-gsd-sdk-package-boundary.md) (2026-05-23); originally Accepted (2026-05-09)). Both the bullet form (- **Status:** Accepted) and the table form (| **Status** | Accepted |) are accepted.
2. Cross-references to other ADRs are file links, never bare ids
Write [ADR-0011](0011-skill-surface-budget-module.md), not ADR-0011. Bare ids are ambiguous for 0010/0011, and unlinked references cannot be checked.
If you mean an issue, write #857 — not ADR-857. (An ADR and its owning issue often share a number; that is intentional and not a conflict.)
3. Supersession and subsumption are symmetric
These are different relations. Do not conflate them:
Supersedes/Superseded by— the target is replaced. Its status becomesSuperseded.Subsumes/Subsumed by— the target still holds, but a broader ADR now frames it. Its status is unchanged; it becomes a component of the larger decision.
If A declares either relation toward B, B must record the reciprocal. A one-way pointer is the failure this corpus actually suffered: ADR-1239 declared it subsumed four ADRs, none of which said so, and none of which pointed back — so a reader landing on any of them concluded the superseded frame was the way forward.
Only an Accepted ADR is owed the back-link. A Proposed ADR's claim is prospective: it has not taken effect, so its target is not marked. On ratification, the check begins demanding the back-links.
4. The declared id matches the filename
An H1 of # ADR-0175: … in a file named 218-*.md is a rename that never finished. The id in the title must match the filename's prefix.
Ratifying a stale Proposed
A stale Proposed is not cosmetic: it tells contributors and agents that live architecture is an unbuilt idea. Fix it — but on evidence, not vibes.
The bar. All four must hold before flipping to Accepted:
- The decided mechanism demonstrably exists in the tree — name the files, symbols, and tests.
- The owning issue is closed as completed. A closed issue is not proof:
stateReasonof not planned / duplicate means the decision was dropped (that isLegacyorRetired, notAccepted). - No material part is unshipped. If the ADR defines phases and one is outstanding, or states its own bar for acceptance and that bar is unmet, it stays
Proposed. - No later ADR supersedes it, and no approved issue already plans its graduation as separate work.
The procedure. Set the status to Accepted — ratified <date> (originally Proposed <date>), add a dated ## Ratification section holding the evidence, then run node scripts/gen-adr-index.cjs --write. If the ADR claims to supersede or subsume others, the gate will now demand their back-links — that is the point. Ratify deliberately.
Two traps worth knowing, both hit during the 2026-07-17 audit:
- Shipped code is necessary, not sufficient. Eight ADRs had every named module, symbol, and test present and their epics closed — and still failed the bar: ADR-2264's own headline acceptance criterion is unmet in the tree, ADR-230's decided branch protection does not match the live API, ADR-660's namesake mechanism is performed by hand, and ADR-959 has an approved issue planning its graduation as its own ADR. Verify the decision, not just the code.
- "Supersedes" is often "subsumes". Read what the ADR means before the gate makes you act on what it says. ADR-857 said "Supersedes (generalizes)"; taken literally, ratifying it would have stamped two live seams (ADR-0011, ADR-58) as dead. The parenthetical was the truth; the field name was wrong.
Maintaining the index
The index is generated. Do not hand-edit it. Everything between the ADR-INDEX:START / ADR-INDEX:END markers is derived from the ADR files themselves:
node scripts/gen-adr-index.cjs # print the index
node scripts/gen-adr-index.cjs --write # regenerate it into this file
node scripts/gen-adr-index.cjs --check # CI: fail if stale or invalid
After adding an ADR, or changing any ADR's status or relations, run --write and commit the result. npm run lint:generated-sync runs --check in CI, so a missing or stale row fails the build rather than rotting silently.
This replaces a hand-maintained table that had drifted to 40 of 65 ADRs — the entire capability family and EoS itself were missing from it, which is precisely why the ADRs a reader most needed were the ones they could not find.
Index
Active decisions (50)
These govern the system as it stands. Cite these.
| ADR | Title | Status | Read first |
|---|---|---|---|
| ADR-0001 | Dispatch policy module as single seam for query execution outcomes | Accepted | — |
| ADR-0002 | Command Contract Validation Module | Accepted | — |
| ADR-0003 | Model Catalog Module as single source of truth for agent profiles and runtime tier defaults | Accepted | — |
| ADR-0004 | Planning Workspace Module as single seam for worktree and workstream state | Accepted | — |
| ADR-0006 | Planning Path Projection Module for SDK query handlers | Accepted | — |
| ADR-0008 | Installer Migration Module owns install-time upgrade safety | Accepted | — |
| ADR-0009 | Shell Command Projection Module owns runtime-aware OS command rendering | Accepted | — |
| ADR-0011 | review.default_reviewers config key scopes the no-flag /gsd-review fan-out |
Accepted | — |
| ADR-0011 | Skill Surface Budget Module owns install-time profile staging and runtime surface control | Accepted | ADR-857 |
| ADR-15 | Cross-AI Plan Convergence via Existing Orchestration Commands | Accepted | — |
| ADR-22 | Plan-vs-codebase drift guard: defaults and symbol-resolver seam | Accepted | — |
| ADR-58 | Runtime Install Policy Module owns the typed install-plan projection | Accepted | ADR-1239, ADR-857 |
| ADR-0174 | Retire @opengsd/gsd-sdk package boundary — single-runtime collapse | Accepted | — |
| ADR-218 | Harden release-workflow version validation — reject leading zeros and pre-check npm | Accepted | — |
| ADR-227 | Input validation must check semantic shape, not just type | Accepted | — |
| ADR-415 | Prevent stale-base reintroduction of retired runtime tokens | Accepted | — |
| ADR-452 | Adopt standard ESLint flat-config lint harness | Accepted | — |
| ADR-456 | Test-rigor architecture — deterministic scheduling, antagonistic tier, typed-surface mandate, and delete-bad-tests policy | Accepted | — |
| ADR-457 | Generation model for bin/lib/*.cjs type safety |
Accepted | — |
| ADR-550 | spec-phase probe pattern and prohibition contract | Accepted | — |
| ADR-0656 | Research Module — L2-hybrid seam for cached, curated-first research | Accepted | — |
| ADR-766 | Claude Code Plugin Manifest Module owns the projection of gsd-core surfaces onto the Claude Code plugin contract | Accepted | — |
| ADR-857 | Capability system — five-step loop as core, features as plug-ins behind Loop Extension Points | Accepted | — |
| ADR-894 | Capability declaration format + registry generation | Accepted | ADR-1239 |
| ADR-959 | Capability Command Contribution | Accepted | — |
| ADR-1016 | Runtime Capability Descriptor | Accepted | ADR-1239 |
| ADR-1235 | Migrate agent conversion to the descriptor-driven install path | Accepted | — |
| ADR-1239 | GSD as an Embeddable Orchestration Engine | Accepted | — |
| ADR-1244 | Capability Ecosystem: third-party authoring, versioned manifests, and URL import/upgrade/remove | Accepted | — |
| ADR-1372 | Canonical markdown-structure parsing — the markdown-sectionizer seam |
Accepted | — |
| ADR-1411 | Resolution must report provenance, not fall open silently | Accepted | — |
| ADR-1508 | Runtime Artifact Conversion Module owns per-runtime content rewriting | Accepted | — |
| ADR-1517 | Reviewer instances — bounded config surface for same-adapter multi-model review | Accepted | — |
| ADR-1577 | Untrusted-input boundary + opt-in injection blocking | Accepted | — |
| ADR-1593 | Skill mapping & converter methodology across runtimes | Accepted | — |
| ADR-1610 | workflow & agent size-budget ratchet (per-file byte baseline + tier hard caps) | Accepted | — |
| ADR-1703 | Cross-platform portability enforcement as AST ESLint rules | Accepted | — |
| ADR-1769 | STATE.md Transition Module — intent-based transitions over scattered RMW callbacks | Accepted | — |
| ADR-1787 | /gsd:next smart-entry front door delegates advancement to /gsd:progress --next |
Accepted | — |
| ADR-1817 | STATE.md rebuild — derivability contract (capstone transition) | Accepted | — |
| ADR-1820 | Spec-Optional Predicate Rail — the Spec-Section Detection Module, the fallback toggle, and the SPEC↔probe precedence contract | Accepted | — |
| ADR-1866 | agent_skills dual injection — orchestrator-side + agent-side self-load | Accepted | — |
| ADR-1990 | Existing Code Onboarding Module owns deterministic repo-state detection and onboarding route selection | Accepted | — |
| ADR-2008 | Generic gate-predicate evaluator (command-exit-zero) |
Accepted | — |
| ADR-2121 | Phase-Identifier Parsing Consolidation | Accepted | — |
| ADR-2143 | Markdown Table Model, Bounded Mutation, and Fail-Loud Consolidation (#1372 part 2) | Accepted | — |
| ADR-2164 | Statusline draws its data boundary at local, read-only sources | Accepted | — |
| ADR-2207 | STATE.md Status lifecycle — phase-completion writes an intermediate state; milestone-close owns termination |
Accepted | — |
| ADR-2346 | Command Dispatch Completion | Accepted | — |
| ADR-3660 | Runtime Artifact Layout Module owns per-runtime artifact placement | Accepted | ADR-1239 |
Proposed (9)
Decided in principle, not yet ratified. Do not cite as settled architecture.
| ADR | Title | Status | Read first |
|---|---|---|---|
| ADR-230 | Introduce next as a long-lived integration branch |
Proposed | — |
| ADR-443 | Unified cross-provider effort controls and fast-mode-aware routing | Proposed | — |
| ADR-612 | Bracket Phase-ID Convention | Proposed | — |
| ADR-660 | Release from the head of next; immutable release tags; @next dist-tag as the RC surface |
Proposed | — |
| ADR-1143 | Claude orchestration capability — Workflow tool (ultracode) as a runtime-gated loop execution backend | Proposed | — |
| ADR-1213 | Capability write side — the Capability State Writer | Proposed | — |
| ADR-1606 | prohibition-enforcement verify-time seam | Proposed | — |
| ADR-1671 | Dynamic context management platform | Proposed | — |
| ADR-2264 | Redesign golden-install-parity — single-source manifest builder + split invariant | Proposed | — |
Superseded, Retired, and Legacy (7)
Historical record. Do not follow these — each names what replaced it, or why it was retired.
| ADR | Title | Status | Replaced by |
|---|---|---|---|
| ADR-0005 | SDK Architecture seam map for query/runtime surfaces | Superseded | ADR-0174 |
| ADR-0007 | SDK Package Seam Module owns SDK-to-get-shit-done-redux compatibility | Superseded | ADR-0174 |
| ADR-0010 | File Operation Engine Module owns safe runtime/config file mutations | Superseded | ADR-0009 |
| ADR-0010 | Skill Surface Budget Module owns install-time skill listing curation | Superseded | ADR-0011 |
| ADR-0011 | PRD — review.default_reviewers config key for /gsd-review reviewer selection |
Legacy | — |
| ADR-0012 | CommandRoutingHub as single dispatch seam for CJS command families | Superseded | ADR-0174 |
| ADR-3524 | CJS↔SDK hard seam — one source of truth per Shared Module | Superseded | ADR-0174 |
66 ADRs. Generated by scripts/gen-adr-index.cjs — run --write after adding or restatusing an ADR.
Seam map
Orientation for the module-ownership ADRs. This section is prose and hand-maintained; the index above is the authority on status.
How GSD meets a host — start at ADR-1239 (EoS). It is the current frame and subsumes the descriptor/projection ADRs (ADR-1016, ADR-58, ADR-3660, ADR-894) as adapters beneath it.
The SDK seam map is gone. ADR-0005 was once the entry point for SDK module ownership; it is superseded by ADR-0174, which retired the @opengsd/gsd-sdk package boundary entirely. There is no sdk/ tree. Read ADR-0174 for the single-runtime collapse; the seam-Module vocabulary survives under one src/.
ADR-0006 documents how query handlers project planning paths (cwd → effectiveRoot → .planning/<project>/...). Cross-reference the Planning Workspace Module (ADR-0004) for workstream pointer policy.
ADR-0008 documents the Installer Migration Module for safe install-time moves, removals, config rewrites, and user-data preservation.
ADR-0009 documents the Shell Command Projection Module seam for runtime-aware projection of installer-owned command text and projection IR. Its Phases 3–4 absorbed the File Operation Engine Module (ADR-0010).
ADR-0011 documents the Skill Surface Budget Module for install-time skill/agent profile staging (--profile=<name>, .gsd-profile marker, requires: closure) and the Phase 2 runtime /gsd:surface command.
ADR-1411 establishes the Resolution Provenance principle: context resolution (config loading, project-root anchoring, workstream resolution) must report its provenance rather than fall open silently to defaults. It is the resolution-side analog of ADR-227 (input-validation shape).