fa41bfec5c
* test(#3942): failing-first suite for the emitted-drift ack commit trailer Binds 37 input classes from the phase test matrix to the behavior ADR-3942 specifies, before any of it exists. Stubs return benign empty values rather than throwing, deliberately: several rows assert that something DOES throw (cap overflow, uncomputable commit range), and a throwing stub would turn those green for the wrong reason and destroy the red. The two rows that carry the design's load: - merge-base semantics. The range is $(git merge-base base HEAD)..HEAD, not base..HEAD, because changedPaths comes from `git diff base...HEAD` (three dot). Two-dot would let the ack set and the change set disagree about which commits are this PR's. The fixture forks a topic branch, puts a trailer on each side, and asserts only the topic-side trailer is in range. - fail-closed on an uncomputable range. With fragments a depth-1 checkout passes VACUOUSLY, every fragment reading as brand-new. With trailers the range cannot be computed at all, and returning an empty set would silently disarm the gate, so it must throw. The fixture builds a genuine shallow clone rather than simulating one. Also covers the self-inflicted case: this change's own documentation quotes the trailer syntax, so an example landing at the end of a commit message would arm a live acknowledgment keyed on the literal placeholder text. Keys carrying angle brackets or whitespace are rejected. Authored per the phase artifacts 40-design.md and 50-test-matrix.md. Not yet run on the remote runner — this commit exists to be tested. Refs #3942 * chore(#3942): move the emitted-drift ack to a commit trailer Implements ADR-3942, superseding ADR-2719 section 3 and its #2789 amendment. Sections 1, 2 and 4-7 are retained: the conservation law is unchanged, only the storage of its escape hatch moved off the working tree. An acknowledgment explains one PR's ripple, and the moment that PR merges the ripple is in the base, so it can never clear anything again. It was stored in permanent shared state anyway, and every consequence of that mismatch had to be built and then maintained. The chain is #2789 -> #2914 -> #3078 -> #3842 -> #3823 -> #3875, each fix generating the next defect, ending in a scheduled sweeper whose own first PR could not merge itself. Added parseAckTrailers + renderAckTrailer (pure) and readAckTrailers (IO shell), reading Emitted-Drift-Ack-Hash: / Emitted-Drift-Ack-Growth: trailers over the merge-base range. tests/emitted-ack-trailer.test.cjs, 37 cases, written failing-first and confirmed red before any of this existed. Changed diffEmitted takes two structurally distinct key-space maps instead of one shared paths map. That closes a latent defect: the spaces were separated by convention only, so a growth key satisfied a hash lookup by naming coincidence. staleAcks now reports which space a key was declared in. REMEDIATION teaches the trailer, per space, with its example rendered through renderAckTrailer so the taught grammar cannot drift from what the parser accepts. Removed the sweep workflow, the guard-no-ack-on-next job, the standalone linter and its lint:ci entry, the fragment directory and its three spent fragments, the legacy single-file union, and the baseAck/spentAcks mechanism -- spentness is now structural, not computed. Two range properties carry the design and are pinned by tests rather than asserted: the range is merge-base scoped, matching git diff base...HEAD, so an already-merged trailer is out of range by construction; and an uncomputable range throws instead of reading as zero acknowledgments, which is the inverse of the fragment guard's vacuous pass. Three deliberate observable changes, each disclosed in the changeset: the unread runtime field is gone, the legacy file is no longer read, and cross-space excusal no longer works. Ten open PRs carry fragments and will meet a modify/delete conflict. Measured before landing and accepted deliberately; the one-line migration is in the PR body. Verified: lint:ci exit 0. Remote runner to follow on this exact sha. Refs #3942 * fix(#3942): silent trailer collapse, lost coverage, and an unbounded cap Six findings from the orthogonal review round, all fixed in place. BLOCKER -- two trailers of the same name on one commit collapsed silently. readAckTrailers built `separator=1d` where git needs `separator=%x1d`: the `separator=` value inside a %(trailers:...) placeholder is itself a pretty-format string, so the bare hex was emitted as two literal characters and the split on \x1d never matched. Two same-name trailers therefore joined into one value with errors empty -- the first reason absorbing the second entry's key. Silent truncation, the exact class MAX_ACK_TRAILERS throws to prevent. Confirmed with od -c against real git output before and after. The failing-first matrix did not catch it because its "both spaces coexist" row uses Hash plus Growth -- different trailer NAMES -- so the value separator was never exercised. Two regression tests now cover same-name trailers directly. Coverage recovered: normalizeAckReason and INVISIBLE stayed on the live path via parseAckTrailers but lost every test when the old suite was pruned. Back under test against the current surface -- all six invisible codepoints individually, whitespace collapse, trim, CRLF, and two seeded fast-check properties. Dropping any single codepoint now fails. MAX_ACK_TRAILERS counted raw trailers before de-duplication, so one trailer carried forward across rebased commits counted once per commit and could throw on a legitimate branch. Now counts distinct entries; 100 identical repeats dedupe to one. diffEmitted validated baseline, current and changedPaths but not the new ackHash/ackGrowth, so a bad shape raised an unhandled TypeError instead of an error verdict -- the same defect shape this file documents for #2778. Docs: CONTRIBUTING and TESTING-SUITES were rewritten only in their first sections; the later passages still taught fragments, git rm and the deleted guard, contradicting the new text directly above them. Finished. Also extends lint-removed-but-needed to exempt docs/adr and docs/research. That gate fails on any docs mention of a file deleted in the same diff, which makes it impossible to document a deletion in the PR performing it -- an ADR's whole job is naming what it retired. Exemption is narrow and comes with a test proving the gate still fires for a live consumer elsewhere under docs/. A guard that cannot fail is worse than no guard. Maintainer-approved. CONTEXT.md names the retired machinery by role rather than by filename: its generated projection lands in docs/, which that gate does scan. Adds docs/how-to/acknowledge-emitted-drift.md. The required docs set is Reference and Explanation, so the task quadrant can be empty with every gate green -- and this change has a real multi-step journey, including the fragment migration ten open PRs now need. lint:ci exit 0. Refs #3942 * docs(#3942): correct the duplicate-trailer rule in CONTRIBUTING Both axes of the code review independently flagged the same passage, without seeing each other's output. It claimed two declarations of the same key are always "a hard, loudly-reported error, not a silent last-wins". That is only half true, and the missing half is the one contributors hit: identical declarations -- same key, same reason -- dedupe silently, because a trailer legitimately survives a rebase and reappears on every rebased commit. Failing there would red a branch for doing nothing wrong, which is exactly why the dedup exists. Only a same-key/different-reason pair errors, and that one is a genuine ambiguity about which explanation holds. As written, the paragraph told a contributor that a rebase-carried trailer breaks the gate -- the opposite of the behavior. CONTEXT.md's parallel entry already stated it correctly; this brings CONTRIBUTING into line. Doc-only, root-level markdown. Refs #3942 * chore(#3942): backfill changeset PR number to 3954 --------- Co-authored-by: sim <sim@local>
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-* 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 the single authoritative statement of the legacy range.
docs/contributor-standards.mdreferences it rather than restating it, so the two cannot drift.
Two other zero-padded files look legacy but are not: 0174-retire-gsd-sdk-package-boundary.md (issue #174) and 0656-research-module-seam.md (issue #656) are mis-padded modern ADRs — modern, issue-numbered files whose four-digit padding is a mistake. They are NOT part of the legacy sequential set above and are not "old local-compute numbering" residue.
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.
5. A trailing H1 status bracket must agree with the Status field
Many ADRs restate their status in the H1 — # ADR-1610: … [Accepted]. That bracket is the first thing a reader sees, and the index strips it when rendering the title, so a stale one used to be invisible to everyone but the reader it misled.
If the H1 ends in a bracket holding a status token, it must name the same status as the Status field. Comparison is case-insensitive and against the parsed token, so [Superseded] agrees with Status: Superseded by [ADR-0174](0174-retire-gsd-sdk-package-boundary.md) (2026-05-23).
A trailing bracket that is not a status token — [Draft], [WIP] — is treated as part of the title and left alone. If you want a bracket the gate ignores, do not spell it like a status.
6. Every relative link resolves
A link whose target does not exist on disk fails the check, naming the file, the line, and the unresolved target. This covers every markdown file in this directory, including this README and any file whose name breaks the convention above.
| Written as | Treated as |
|---|---|
[t](900-beta.md), [t](../prd/) |
resolved — a directory counts |
[t](900-beta.md#section) |
the file is resolved; the #fragment is not checked |
[t](https://…), [t](mailto:…), [t](//host/x) |
out of scope — absolute destinations are never fetched |
[t](#lifecycle-rules) |
out of scope — a same-document anchor is not a file reference |
[t](/docs/adr/x.md) |
resolved against the repository root, as GitHub does |
a link inside a ``` fence or `backticks` |
not a link — markdown does not render one there, so it is never resolved |
[text][ref] reference-style, <a href>, bare autolinks |
not supported; write an inline link |
Two consequences worth stating outright:
- Case matters, on every platform.
[t](0001-Alpha.md)pointing at0001-alpha.mdfails even on macOS and Windows, because it 404s on github.com and reds the Linux CI lane. The failure names the entry it found so the fix is obvious. - A link to a generated or ignored path fails. Nothing here consults
.gitignore; the question is only whether a reader following the link lands somewhere. Cite the hand-authored source rather than the build artifact.
If the gate rejects something you wrote
Reproduce it locally first — it is the same command CI runs, and it names the file, the line, and the target:
node scripts/gen-adr-index.cjs --check
Then work from the reason:
| What it says | What to do |
|---|---|
does not resolve — no such file or directory at … |
Fix the path. It is relative to docs/adr/, so a sibling ADR is just 900-slug.md. If the target genuinely does not exist yet, drop the link rather than leaving it pointing nowhere. |
…Did you mean X? — link targets are case-sensitive on github.com |
Match the on-disk name exactly. Your machine may open the file regardless; github.com and the Linux CI lane will not. |
escapes the repository |
The path resolves outside the repo. Link something inside it, or use an absolute URL — those are out of scope and never checked. |
is a symlink that escapes the repository |
An ADR file itself is a symlink pointing outside the repo. Commit a real file. |
H1 status bracket […] contradicts the Status field (…) |
Update whichever of the two is stale so they agree. The Status field is authoritative; the bracket is a restatement for the reader. |
A link that is an example, not a destination, belongs in backticks. The gate skips fenced blocks and inline code entirely, because markdown does not render a link there. That is the escape hatch for illustrative syntax — the table above is written that way, which is why it does not fail this check. An indented code block (four spaces) is not skipped; use backticks.
To consume the result from a script rather than by eye, use --json (below) and branch on each violation's stable reason code.
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
node scripts/gen-adr-index.cjs --json # same checks, machine-readable report
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.
--json runs the same validation as --check and writes a report to stdout instead of prose to stderr, with the same exit code. Each violation carries a stable reason code, so a tool consuming this never has to pattern-match an error message:
{
"ok": false,
"adrCount": 76,
"indexStale": false,
"violations": [
{ "file": "2704-example.md", "line": 41, "reason": "link_unresolved",
"target": "reference/x.md", "resolved": "docs/adr/reference/x.md" }
]
}
An unrecognized flag is rejected rather than ignored.
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
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-443 | Unified cross-provider effort controls and fast-mode-aware routing | 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 | 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-2313 | Codex Adopts the Passive / Session-Only Model Posture | Accepted | — |
| ADR-2346 | Command Dispatch Completion | Accepted | — |
| ADR-2363 | A capability's skill body is an instruction surface — trusted, unscanned, and disclosed | Accepted | — |
| ADR-2619 | Observability and shareable diagnostics — wire the dispatch seam, add the outbound trust boundary | Accepted | — |
| ADR-2629 | Phase effort is estimated against a calibrated smart-zone budget, not a static heuristic | Accepted | — |
| ADR-2719 | Emitted-artifact attribution — replace the committed parity fixtures with a computed conservation law | Accepted | — |
| ADR-2782 | Reviewer Lane — the cross-AI reviewer handoff becomes a declared capability surface | Accepted | — |
| ADR-2866 | Install-surface resolution — the install pipeline resolves (runtime × scope × trigger) as a value |
Accepted | — |
| ADR-2966 | Test the five-step loop as a continuous walk, not isolated points | Accepted | — |
| ADR-2980 | A payload-carried error key is a degraded result, not a fault |
Accepted | — |
| ADR-3180 | Planning Semantic Model — Single Owner per Derivation | Accepted | — |
| ADR-3212 | The Lexical Seam — Safe Pattern Construction, Line-Terminator Normalization, and Tokenizer-First Stateful Grammars | Accepted | — |
| ADR-3408 | STATE.md Write Path — One Declared Policy, One Write Seam | Accepted | — |
| ADR-3409 | Shell Guards Must Observe Their Own Failure Arm | Accepted | — |
| ADR-3473 | Enforcement by Construction — One Owner per Invariant | Accepted | — |
| ADR-3574 | Install materialization shares primitives, not one writer | Accepted | — |
| ADR-3625 | The platform seam keeps its own Windows binary resolution rather than adopting a spawn library | Accepted | — |
| ADR-3660 | Runtime Artifact Layout Module owns per-runtime artifact placement | Accepted | ADR-1239 |
Proposed
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-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-1953 | Complexity-triggered refactor — the loop measures the entropy it just added | Proposed | — |
| ADR-3128 | Adaptive runtime evidence for GSD Debug | Proposed | — |
| ADR-3889 | One exit-code registry — 0 and 1 are free, everything else is allocated | Proposed | — |
| ADR-3942 | The emitted-drift acknowledgment is PR-lifetime data — it belongs in a commit trailer, not the working tree | Proposed | — |
Superseded, Retired, and Legacy
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-2264 | Redesign golden-install-parity — single-source manifest builder + split invariant | Superseded | ADR-2719 |
| ADR-3524 | CJS↔SDK hard seam — one source of truth per Shared Module | Superseded | ADR-0174 |
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).