Files
msd-core/docs/adr
Tom Boucher d24e22b156 enhance(#3912): gsd-tools declares outcomes, pinned at v1 (#3983)
* enhance(#3912): gsd-tools declares outcomes, pinned at v1

ADR-3889 §4. Phase 6 already moved error()'s terminator onto the seam, so what
remained was the declaration — and the pin that makes it invisible today.

The census corrected two documented figures before any code changed.
ERROR_REASON has exactly 25 members (the ADR and epic were right; an earlier
note of mine claiming 23 was wrong and is corrected). And output({error}) is
**64 sites across 9 files, not the 60 ADR-2980 ratified** — the module shape
holds but the total drifted +4: frontmatter 7 not 6, phase 4 not 2, roadmap 3
not 2. That matters because this phase's criterion demands the pin be asserted
over the enumerated population rather than sampled; asserting over a stale 60
would leave four sites unpinned while claiming full coverage, which is the
shape of failure this epic exists to remove.

The issue does not state the fact that shapes the design: output() never
touches the exit code. Confirmed by reading it — it writes fd 1 and returns.
So a declared outcome for those 64 sites had nowhere to be READ. The mapping
was never the work; wiring somewhere for the declaration to land was.

The seam already existed twice over. cli-exit.cts holds two globalThis-Symbol
cells, each because the module is emitted to three locations and a module-level
`let` would let instances disagree, and runMain already maps a code returned by
main(). A third cell inherits that solution. output() records DEGRADED for any
{error} payload — key-order agnostic, which is exactly why the "42 sites"
figure undercounts — and runMain projects the cell only when main() returns
nothing, so an explicit return still wins.

error() maps its reason through a table over the closed 25-member enum, leaving
all 278 call sites untouched; 226 of them pass no reason at all. The version
gate lives in error(), NOT in projectOutcome: registered names are
version-invariant there, so mapping a reason straight through would make USAGE
project to 64 under v1 and break the pin on its first line. projectOutcome is
left exactly as Phase 2 shipped it, DEGRADED's 0/80 asymmetry included.

Proven rather than asserted. v1 is byte-identical across three real CLI paths —
config-get plain, config-get --json-errors, and an output({error}) path —
matching exit code and exact bytes against the pre-change build. Under
GSD_EXIT_CONTRACT=v2 the same commands now exit 66 (CONFIG_KEY_NOT_FOUND ->
NO_INPUT) and 80 (DEGRADED), both looked up through the registry. An
anti-vacuity test pins that v1 and v2 genuinely differ for at least one reason,
because without it a mapping where everything projects to 1 under both versions
would satisfy every other assertion and the declaration would be theatre.

A1 iterates all 25 enum members and A3 asserts over the measured 64-site
population, so a 26th reason or a 65th site fails until it is given a mapping —
the drift guard this phase needs, given ADR-2980's own count had drifted +4
unnoticed.

Verification runs on the remote runner.

Refs #3912

* fix(#3912): the outcome cell must never lower an exit code

The remote run caught a fail-open that this phase introduced, in the phase
whose entire purpose is removing fail-opens.

`state validate --strict` on a missing STATE.md exited **0** where it must exit
1. Mechanism: `runMain` projected the pending outcome whenever `main()` returned
void, and under v1 DEGRADED projects to 0 — so a `process.exitCode` already set
non-zero by the command was clobbered down to success. Confirmed live against a
fixture, before and after.

This refutes a review conclusion recorded earlier in this phase, that the cell
was "fail-closed and can never mask a failure as success". It could, and did.
Recording that plainly so the assumption is not repeated: the cell's danger was
never only that it might add a failure — it was that projecting it
unconditionally overwrites whatever decision came before.

Projection is now guarded: it may set a code only when none is set, and an
already-non-zero exit code always wins. The full precedence — explicit `main()`
return, then an existing non-zero exitCode, then the declared outcome — is
written at the projection site. A regression test drives a void return with a
pre-set non-zero code and a pending DEGRADED, and fails against the pre-fix
build.

The second failure was my test encoding the wrong contract, not a code defect.
It asserted `output({found:false, error: undefined})` records DEGRADED because
the KEY is present. `JSON.stringify` drops undefined, so the payload the user
receives is `{"found":false}` — carrying no error at all, and calling that
degraded would hand back exit 80 under v2 for output that reads as clean. The
discriminator is a serializable error VALUE, not key presence. The test now
pins `{error: undefined}` as explicitly NOT degraded, and the design doc's
wording is tightened to match.

Verification runs on the remote runner.

Refs #3912

* docs(#3912): the versioned exit contract, and a flag defect the docs found

Diataxis pass for Phase 8, plus a real fix that only surfaced because writing
the how-to meant running its own examples.

The docs. ADR-2980's "Revisit if" clause asked for exactly the versioned
projection this phase provides, so it gets an amendment naming #3912 /
ADR-3889 section 4 as that boundary: v1 stays 0 byte-for-byte, v2 projects
DEGRADED to 80. The amendment also records the count drift rather than
restating a stale figure — the ADR ratified 60 output({error}) sites in 9
modules; the AST-measured population is 64 across the same 9 (frontmatter 7
not 6, phase 4 not 2, roadmap 3 not 2). The pin is asserted over the
enumerated 64. json-errors.md gains the outcome-declaration reference,
including the precedence order a review pass got wrong and the suite refuted:
an explicit main() return, then an already-set non-zero process.exitCode, then
the declared outcome. Projection may only ever set a code, never lower one.

A how-to is owed here and is written, not skipped. Under v1 nothing changes,
so the audience is an operator opting into v2 and needing to know what the
codes mean for a CI gate — a migration, which is how-to shaped. It covers
turning v2 on, the code table, why 80 is "ran and reported a condition" rather
than a crash, and how to split a gate that treats any non-zero as fatal. No
tutorial: there is no new entry point to learn, and under the default contract
a reader would be walked through observing nothing.

The defect. Running the how-to's own Step 1 example returned

    $ gsd-tools --exit-contract=v2 state validate --strict
    Error: Unknown command: --exit-contract=v2          (exit 64)

while the same flag trailing the subcommand worked and exited 80. The flag
half-worked, by argv position. resolveContractVersion scans argv
non-destructively, so the token survived into the dispatcher, which treats
argv[2] as the command name. --json-errors had already solved precisely this
at gsd-tools.cjs:4455, under a comment naming the hazard verbatim: "The argv
splice must happen here too, otherwise the dispatcher below sees
--json-errors as an unknown command." The later flag never got the same
treatment.

Fixed rather than documented around: the version is resolved first — which
memoizes the cell and makes an invalid value throw early — and then every
--exit-contract= token is spliced out of the dispatcher's argv copy.
--exit-contract is now listed in TOP_LEVEL_USAGE, where it never was. The
regression test pins leading position, trailing position, agreement between
the two, and a loud failure on v3 rather than a silent fall back to v1.

Neither review engine would have caught this: the defect is invisible in the
diff, because the diff does not touch argv handling. It surfaced only from
running the documentation's own example. Writing a how-to is an execution pass.

Verification runs on the remote runner.

Refs #3912

* fix(#3912): the flag splice has to run before the run-with-timeout return

An isolated review of the previous commit found that the fix did not deliver
what it claimed, and that two of its own tests were weak. All three findings
reproduced by execution before any change was made.

The fix was placed below a return. main() intercepts `run-with-timeout` at
gsd-tools.cjs:4436 and returns from there — above both the --json-errors block
and the --exit-contract splice added in the previous commit. So the flag still
died in leading position for that one command:

    $ gsd-tools --exit-contract=v2 run-with-timeout 5 -- node -e "..."
    Error: Unknown command: run-with-timeout        (exit 64, child never ran)

The previous commit message and the test's describe-block both claimed
position-independence unconditionally. That was an overclaim, not a gap left
open, and it is the part worth naming: the fix was verified by hand on the
commands I happened to think of, and `run-with-timeout` returns before the
code I was verifying.

Both global-flag blocks now run above the interception, with a comment naming
it so a later edit cannot slide them back down. Moving --json-errors up fixes
the identical pre-existing bug for that flag, verified failing beforehand
(exit 1, sdk_unknown_command). Fixing the sibling is deliberate: same defect,
same block, and a known-broken twin next to a fixed one is not a resting state.

Two tests were not pulling their weight. The invalid-value test was vacuous —
it passed against the pre-fix build, because `--exit-contract=v3` already
exited 1 there and already printed the resolve error lazily through
error() -> getContractVersion. Both its assertions held before the fix, so it
pinned nothing. The real discriminator is that the pre-fix build emits BOTH
"Unknown command: --exit-contract=v3" and the resolve error, while the fixed
build emits only the latter; the test now asserts that absence.

The leading-position and leading==trailing tests asserted proxies — "not 64",
"no Unknown command", "the two agree" — none of which pin a value, and all of
which would survive both positions being identically broken. With a .planning
directory and no STATE.md, state-snapshot exits exactly 80 under v2 and 0
under v1 in both positions. Those numbers are pinned now. The multi-token case
the descending splice loop exists for is covered too, and run-with-timeout has
regression tests for both flags.

The lesson is narrower than "test more". Hand-verifying the production
behavior does not verify that the test would have caught its absence. The
pre-fix binary has to be run against the test's own assertions.

Investigated and deliberately not changed: splicing before --cwd parsing
degrades one diagnostic from "Missing value for --cwd" to "Invalid --cwd:
<path>", but that is pre-existing — verified on the pre-fix build via
--json-errors, which already did it. This change joins the pattern rather than
creating it, and both forms exit 64 on malformed input either way.

Verification runs on the remote runner.

Refs #3912

* chore(#3912): backfill changeset pr numbers to 3983

* test(#3912): pin the reason-table invariant as set equality, not a count

A graph-backed review flagged the unchecked lookup in
expectedErrorCode3912. Investigated by execution: the drift guard DOES
hold — for an unmapped reason under v2 the production error() yields 1
while the table yields undefined, so the assertion fails. Not a
correctness defect, and deliberately NOT made tolerant, since a tolerant
lookup would destroy the guard.

Two real problems remained. The guard asserted the wrong invariant: it
counted the TABLE's keys at 25 rather than checking they match the
ENUM's values, so a renamed member keeps the count at 25 and slips past,
and a 26th member leaves the table at 25 and slips past too. Both were
then caught only indirectly, by an undefined mismatch producing 'must
exit undefined'. It is now a sorted set equality, so the failure names
the specific missing or extra reason.

And the comment above it described a '?? FAIL' fallback that does not
exist anywhere in the function. It now states what the code actually
does, verified by running it rather than by reading it.

Refs #3912

---------

Co-authored-by: sim <sim@local>
2026-08-28 08:09:05 -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.

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.

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 at 0001-alpha.md fails 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:

  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
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-3626 CONTEXT.md seam claims carry a checkable enforcement pointer 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).