Files
msd-core/docs/adr
Tom Boucher 9ac0dfad58 chore(#2929): generalize prompt-budget into the shared context-composer seam (#2958)
* test(#2929): capture prompt-budget parity corpus pre-refactor

Phase 2 of epic #1671 generalizes prompt-budget's trim ladder into a shared
context-composer seam. Its success condition is that review-prompt output does
not change, and the only authority on "did not change" is the behavior that
shipped before the refactor. Capture that behavior now, while it is still the
live implementation.

47 characterization cases, every `expected` value computed by executing the
current implementation rather than hand-authored — the independence
CONTRIBUTING.md "Fixture provenance (#2371)" asks for.

A corpus is only worth what it can detect, so this one was validated by
mutation rather than assumed. Five deliberate defects were injected and each
must be caught by at least one case:

  - the note reserve deducted unconditionally instead of only under pressure
  - the pressure test relaxed from `>` to `>=`
  - a no-op head-shrink still setting the shrunk flag
  - the per-plan floor dropped from the proportional share
  - drop order reversed

Two of those exposed real holes in the first cut of this corpus, and the cases
that close them exist because of it:

  - `>=` was caught by NOTHING. At exact cap the only trimmable fragment was a
    floored plan group, and the 1024-char floor absorbed the entire trim, so the
    mutation was byte-invisible. A3b/A3c put a droppable at exactly the cap,
    which makes the strict inequality observable as context kept vs omitted.

  - No case reached proportional-truncate at all — B6 and B7 both hard-failed
    the min-set pre-check first, leaving planTruncationPct at 0 across every
    case and the floor semantics entirely unexercised. Rebudgeted to 700 and
    1100 so the min-set fits and the truncate step is actually reached; they now
    record 40.20% and 48.80%.

The A4/A10 families sweep the pressure boundary from both sides, which is where
this function has regressed before: CONTEXT.md's
LEARNING.prompt-budget.boundary-gap records PR #3708 shipping two regressions
that only fired when the baseline sat inside the NOTE_RESERVE_TOKENS band,
because the suite paired a trivially-fitting budget with a trivially-overflowing
one and never sampled between them. A4 pins that nothing is trimmed from the cap
down to 81 tokens under it; A10 pins that pressure fires at +1. Together with
A3b/A3c they satisfy row (d) of RULESET.TESTS.boundary-coverage.fixtures.

Two facts the corpus establishes that the design notes had wrong:

  - "" and null sections are NOT distinguished. applyBudget uses truthy checks
    throughout, so an empty-string section is treated as absent: not rendered,
    not dropped, never recorded in `omitted`. B13b pins this while the ladder is
    actively trimming, where only the non-empty `research` is dropped.

  - Sizing matters. B12/B13 were first written at a budget where both hard-failed
    the min-set check and returned "", so comparing them compared two empty
    strings and proved nothing.

Committed as its own commit, ahead of the refactor, and regenerated against the
pre-refactor implementation, so the oracle is demonstrably independent of the
change it will adjudicate.

Refs #2929

* refactor(#2929): extract the context-composer seam from prompt-budget

Epic #1671 needs prompt-budget's budget-trimming logic for a second consumer —
per-runtime artifact emission — but it is walled inside the cross-AI review
pipeline. Lift it into a shared seam so later phases can call it, without
changing what the review pipeline emits.

ADR-1671 specifies the composer as "priority + binary-search cutoff to a
per-runtime budget". Read against the code it generalizes, that contract cannot
express the thing being generalized. applyBudget is not a cutoff: it is a fixed
five-step ladder in which each section carries its own shrink strategy, and only
three of its eight sections are ever dropped. PROJECT.md is head-shrunk to N
lines; plans are proportionally tail-truncated with a per-plan 1024-byte floor;
instructions and roadmap are never touched at all. A cutoff composer sorts by
priority and discards the tail — it has no way to say "shrink this one",
"truncate that one but never below 1 KB each", or "these three are the only
droppables, in this order". Building to the literal contract and routing
prompt-budget through it would have silently changed review-prompt output, which
is the one outcome this phase forbids.

So shrink strategies are the core abstraction here, and cutoff becomes one
strategy among them — the right one for per-runtime emission in Phases 3-4, not
for this ladder. That is an elaboration of the ADR's intent, not a departure
from it, and ADR-1671 is updated to say so.

Three decisions worth stating:

  - The composer DECIDES; the caller RENDERS. composeWithinBudget returns a plan
    of surviving fragments and never a string. assemblePrompt's rendering is
    prompt-shaped (`## Roadmap`, `### <file>`, the note in position two), and
    owning it in the composer would force emission to adopt prompt-shaped
    rendering. The split is what lets one seam serve both consumers.

  - The budget unit is INJECTED via `measure(text)`. prompt-budget passes its
    chars/4 estimator; emission will pass a byte counter, which ADR-1671 requires
    for emission caps. The existing code converts a token budget to a character
    budget with a hardcoded `* 4`; that assumption is now an explicit
    `charsPerUnit` inverse, which is precisely what a byte unit needs in order to
    reuse this.

  - The entry point is `composeWithinBudget`, not `applyBudget`. That name
    already exists twice — src/prompt-budget.cts and src/graphify.cts, the latter
    being an unrelated graph-edge budget. A third would make every symbol search
    in this repo ambiguous, and it already misresolves: preflight and impact
    queries for "applyBudget" return graphify's.

Behavior is unchanged and proven so: all 47 characterization cases reproduce
byte-identically, and the corpus is mutation-validated rather than merely green
(see the preceding commit). prompt-budget.cts drops from 436 to 343 lines and
from eighteen mutable accumulators to two, both inside a helper copied verbatim.

estimateTokens deliberately stays in prompt-budget and keeps its exact math:
src/phase-estimation.cts re-exports it as measureTokens, and CONTEXT.md pins
plan estimates and recorded actuals to that same scale, so moving or changing it
would silently break the calibration loop.

Refs #2929

* docs(#2929): document the context-composer seam and amend ADR-1671

Adds the INVENTORY row, the CONTEXT.md glossary entry (a PR gate for new
domain modules), and a mutation-matrix entry for the new module.

The ADR amendment is the substantive part. ADR-1671 specified the composer as
"priority + binary-search cutoff to a per-runtime budget". Implementing Phase 2
established that a cutoff alone cannot express the function the platform
generalizes, so the ADR now records shrink strategies as the core abstraction
with cutoff as one strategy among them, reserved for per-runtime emission in
Phases 3-4. Recording it in the ADR matters because Phases 3-6 are planned
against that contract and would otherwise be planned against a mechanism that
does not work.

The mutation-matrix entry is not bookkeeping. Stryker scores per module against
a named .cjs, so relocating the ladder out of prompt-budget.cjs would leave the
extracted code unmeasured while prompt-budget's own score floated free of the
logic it used to cover. context-composer gets its own entry at the same floor.

Refs #2929

* test(#2929): pin the effectiveBudget rounding mode in the parity corpus

An isolated correctness review found a real blind spot: mutating
`Math.floor` to `Math.round` in the effectiveBudget calculation failed ZERO of
the 47 corpus cases. Every (budget, safetyMarginPct) pair in the generator
happened to produce a whole number, so floor, round and ceil all agreed and the
rounding mode was entirely unpinned by a corpus whose whole job is to pin
observable behavior.

Three cases fix that by straddling the .5 boundary:

  A11  95 * 0.90  = 85.5   floor 85, round 86  -> the two disagree
  A12  97 * 0.90  = 87.3   floor and round agree; ceil (88) does not
  A13  93 * 0.85  = 79.05  same guard at a non-multiple-of-10 margin, so the
                           margin arithmetic is exercised and not just the budget

A11 alone catches the round mutation; all three catch ceil. Regenerated against
the pre-refactor implementation (`git show 9557f8552:src/prompt-budget.cts`), so
the expanded corpus keeps the independence property the original capture had.

The corpus is now mutation-validated against seven injected defects, every one
caught: unconditional note reserve, `>` relaxed to `>=`, no-op head-shrink
setting its flag, the truncate floor ignored, drop order reversed, and both
rounding-mode changes.

Refs #2929

* feat(#2929): flexReserve floors and the byte-stable isolate prefix

Two of issue #2929's "Done when" items were unimplemented rather than deferred,
and an isolated review flagged them alongside my own audit. Both are part of
ADR-1671's composer contract, so shipping the seam without them would have left
Phases 3-4 building against a contract that does not exist yet.

flexReserve is a per-fragment floor in measure units that every strategy must
respect, which is what makes it different from the pre-existing floorChars: that
one is a chars-denominated detail of proportional-truncate alone and is retained
unchanged. A floored fragment is never dropped, is never head-shrunk below its
floor, and raises its own proportional cap. A fragment already smaller than its
floor is untouchable outright. Metadata gains `floored`, listing the ids whose
floor actually prevented a trim — a guarantee no caller can observe is a
guarantee no test can hold you to.

isolate marks the byte-stable canonical prefix the ADR calls for: never trimmed,
never dropped, but still counted, because a prefix excluded from accounting
would silently under-count real context. Metadata gains `isolatePrefix` so a
caller can hash or assert on the exact bytes. Declaring an isolate fragment
after a non-isolate one throws: a prefix that is not at the front is not a
prefix, and accepting it would make the cross-runtime stability claim
meaningless.

Adds tests/context-composer.test.cjs for the exact new semantics and
tests/context-composer.property.test.cjs for the five invariants, including the
budget-monotonicity property the issue names explicitly. Both are registered in
the mutation matrix, since coverage does not migrate with relocated code.

prompt-budget uses neither feature, and its output is unchanged: all 50 corpus
cases still reproduce byte-identically.

Refs #2929

* chore(#2929): allowlist the prompt-budget parity suite

The parity corpus needs its own test file and that makes prompt-budget a
three-file module against a limit of two. The lint offers consolidation or an
allowlist entry with justification; the entry is the right call here.

Consolidation would mean folding the characterization suite into
prompt-budget.test.cjs, which is the one thing that should not happen to it. The
parity suite is a distinct concern with a distinct lifecycle: it is generated
rather than hand-written, it is named by scripts/mutation-matrix.cjs as its own
scoring target, and its failure means something categorically different from a
unit-test failure — not "this behavior is wrong" but "observable output moved".
Burying it inside a general unit file would obscure exactly that signal.

The allowlist is an identity ratchet, so this entry pins today's three exact
filenames: adding a fourth still fails, and dropping back to two requires
removing the entry.

Refs #2929

* fix(#2929): register the new module with two gates it was missing

The remote matrix caught three defects that no local check could, because the
local runner is blocked in this repo and these suites had therefore never
executed. Eight failures, identical on node22 and node24, so nothing
environment-shaped.

Two are the new-module ripple. A net-new src/*.cts lands in six places and this
change had reached four of them — .gitignore, INVENTORY, the manifest, and the
CONTEXT.md glossary — while missing the ESLint ignore list (tsc OUTPUTS must not
be linted; repo-invariants asserts linted-xor-ignored) and the mutation ratchet
baseline (a deliberate review-visible mirror of the matrix floors, which every
COVERED module must carry). Both are now registered, the ratchet at the same
floor of 66 the matrix declares.

The third was a test asserting an outcome it had made impossible. It set
budget:1 alongside a 400-char required fragment, so the group budget came out at
-99 and the proportional-truncate step was skipped entirely — the deliberate
"non-positive group budget is skipped, never clamped" rule inherited from the
original ladder. Nothing was trimmed, and the test then asserted a truncation.
Rebudgeted so the step actually runs, with the arithmetic written out in a
comment so the next reader does not have to re-derive why 120 rather than 80.

Fixing that surfaced a genuine bug in the composer. `floored` is documented as
recording fragments whose flexReserve prevented a trim that would otherwise have
happened, but the push sat in the else-branch of "content did not change", so it
only fired when nothing was trimmed at all. A fragment truncated to a
reserve-raised cap has also had a trim prevented — 40 characters' worth in the
test above — and was silently absent from the field that exists to make the
guarantee observable. The condition was already right; it was in the wrong
branch. Now recorded on both paths: a drop prevented outright, and a truncation
capped higher than the share alone would have allowed.

Parity is unaffected — prompt-budget never sets flexReserve, so the branch is
unreachable from every corpus path, and all 50 cases still match.

Refs #2929

* chore(#2929): backfill changeset PR number (#2958)

* chore(#2929): correct the corpus case count in the changeset fragment

---------

Co-authored-by: sim <sim@local>
2026-07-31 23:03:13 -04:00
..

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.
  • Proposed means 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 to Accepted, each carrying a dated Ratification section with the evidence (see ADR-857 for the fullest example). The ADRs that remain Proposed are Proposed for 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 stale Proposed.

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.md references 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.

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 becomes Superseded.
  • 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:

  1. The decided mechanism demonstrably exists in the tree — name the files, symbols, and tests.
  2. The owning issue is closed as completed. A closed issue is not proof: stateReason of not planned / duplicate means the decision was dropped (that is Legacy or Retired, not Accepted).
  3. 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.
  4. 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 (54)

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-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-3660 Runtime Artifact Layout Module owns per-runtime artifact placement Accepted ADR-1239

Proposed (8)

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 —

Superseded, Retired, and Legacy (8)

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

70 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).