---
kind: tracking
status: active
---

# W4 — document contract worklist

Companion to `2026-08-20_stack-docs-flatten-and-alignment.md`. That document proposes the
contract; this one records what was applied, what was held, and what still needs a decision.

Measured on `origin/next` at `63069149`. Author: veronica. Review: fred (Gate-16, author is
not reviewer), then a pi seat for the adversarial pass.

## What "live" means here

All `*.md` under `docs/`, minus `docs/archive/`, minus `docs/_old_structure/`. That is **127**
files. The flatten plan says 130; the arithmetic does not close (318 total = 134 archive +
57 `_old_structure` + 127 live, not 130).

## Applied

**These are the FIRST-PASS counts and they are superseded. The current tree is counted in
"Verification arithmetic, re-closed" at the end of this document.** They are left standing rather
than overwritten, for the same reason every other correction here is: a record of what a pass
produced is worth more than a number silently updated to still look right.

| bucket                      | count | note                                   |
| --------------------------- | ----- | -------------------------------------- |
| stamped `kind` + `status`   | 107   | this pass                              |
| held, operator judgement    | 17    | section "Needs a decision" below       |
| held, cites the moving path | 3     | the three `SUPERSEDED` TASKS.md stamps |
| held, generated file        | 1     | `docs/fleet/NORTH_STAR.md`, see below  |

128 live `.md` under `docs/`, which is the 127 baseline plus this document. 107 + 17 + 3 + 1 = 128.

Kinds: 53 `guide`, 34 `record`, 13 `spec`, 7 `tracking`. Status: 105 `active`, 2 `completed`.

After fred's Q1 ruling stamped `docs/README.md`, one file moved from the held bucket to the stamped
one and nothing else changed: **108 stamped + 16 + 3 + 1 = 128**, kinds 54 `guide`, 34 `record`,
13 `spec`, 7 `tracking`, status 106 `active`, 2 `completed`. Two files carry
`source_of_truth: true`, `docs/README.md` and `docs/requirements/native-kanban-sot.md`.

`parent` is **not** applied. It points at `docs/fleet/NORTH_STAR.yaml`, which the flatten moves
to `docs/NORTH_STAR.yaml`. Stamping it now means re-pointing 127 files by hand later. It lands
after the move, in one pass, with the post-move path.

## Held: the three superseded stamps

`docs/TASKS.md:5`, `docs/federation/TASKS.md:5`, and `docs/fleet/TASKS.md:5` each carry a W1
stamp of the form:

> **STATUS: SUPERSEDED — 2026-08-20.** kind `tracking` · superseded by `docs/fleet/NORTH_STAR.yaml`

Two problems, both real:

1. **The tooling cannot read them.** That line is a blockquote below the H1, not YAML front
   matter. Plan section 6 check 5 ("every live document has a header; no document is
   unclassified") parses front matter, so all three read as unclassified. The control that the
   parse itself works is `docs/fleet/FLEET-DOCTRINE.md:3`, which is genuine front matter.
2. **They cite the moving path.** Three of the six citations of `docs/fleet/NORTH_STAR.yaml`
   are these stamps. Converting them before the flatten lands makes them stale on merge.

Converted after the flatten, not before.

## Held: the one generated file

`docs/fleet/NORTH_STAR.md` is a `projection` and was stamped in the first pass. The stamp was
**reverted before review**, because stamping it is self-contradictory in a way that is not
merely theoretical:

- The contract says a `projection` is "Generated. Never hand-edited." Adding front matter by
  hand is a hand edit of a generated file, and the file's own banner says
  "**Generated file — do not edit by hand.**"
- `renderNorthStarMarkdown()` at `packages/mosaic/src/commands/fleet.ts:373` emits the H1 as
  its first line and no front matter at all.
- `fleet-north-star.spec.ts:110-114` asserts full-string equality between the renderer's output
  and the committed file: `expect(rendered).toBe(committed)`. Before the stamp, line 1 of the
  committed file was `# Mosaic Fleet — NORTH STAR`, matching the renderer. After it, line 1 was
  `---`. The assertion fails.

So the header for a projection cannot live in the file. It has to be emitted by
`renderNorthStarMarkdown()`, which is a code change and belongs in the flatten PR alongside the
`resolveNorthStarPaths()` fix, not in a documentation pass.

This generalises: **the contract as written cannot classify any generated document without a
matching change to its generator.** `NORTH_STAR.md` is the only projection today, so the cost
is one function. It will not stay one.

## Needs a decision

Nineteen rows. Seventeen are the plan's section 9 list, minus `docs/fleet/north-star.md`
(renamed to `FLEET-DOCTRINE.md` by W1, so the row is closed) and minus the two `.yaml` rows,
which are a different problem — see the next section. Two rows are new, found while
classifying.

Fill the `kind` column with a value from the contract, or `superseded-by: <path>`.

| path                                                            | proposed                | why it is not mechanical                                                                                                                                                                                                                                                                                                                             |
| --------------------------------------------------------------- | ----------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `docs/README.md`                                                | `guide`                 | It also **prescribes** the competing front-matter convention (see below). Whatever kind it gets, its body needs an edit.                                                                                                                                                                                                                             |
| `docs/SITEMAP.md`                                               | `guide` or `projection` | If it is generated from the tree it is a projection and needs a drift test. If hand-maintained it is a guide that goes stale silently. Nobody has said which.                                                                                                                                                                                        |
| `docs/federation/SETUP.md`                                      | `guide`                 | Reads as a guide. Federation tier status is the open part: if the tier is shelved this is `superseded`.                                                                                                                                                                                                                                              |
| `docs/fleet/FLEET-CONFIG-DOCS-IA-CHECKLIST.md`                  | `record`                | An acceptance checklist is evidence of a past gate, which is `record`. But if it is still being checked against, it is `tracking`.                                                                                                                                                                                                                   |
| `docs/fleet/FLEET-LAUNCH.md`                                    | `guide`                 | Runbook. Depends on whether `launch-seat.sh` is deprecated in favour of `mosaic fleet` (campaign W3). If so, `superseded`.                                                                                                                                                                                                                           |
| `docs/fleet/LEGACY-EXAMPLE-PROFILE-DISPOSITION-INVENTORY.md`    | `record`                | An inventory of dispositions taken. `record` unless dispositions are still pending, which the title implies they were once.                                                                                                                                                                                                                          |
| `docs/fleet/README.md`                                          | `guide`                 | Section index. Low risk; listed only because the plan lists it.                                                                                                                                                                                                                                                                                      |
| `docs/fleet/backlog-conventions.md`                             | `guide`                 | Conventions decide things, and `guide` explicitly decides nothing. May be `spec`.                                                                                                                                                                                                                                                                    |
| `docs/fleet/f4-matrix-connector.md`                             | `spec`                  | F4 is a workstream. Whether it is live or abandoned decides `spec` versus `superseded`.                                                                                                                                                                                                                                                              |
| `docs/native-kanban-sot/DOCUMENTATION-CHECKLIST.md`             | `record`                | Same question as the fleet IA checklist.                                                                                                                                                                                                                                                                                                             |
| `docs/native-kanban-sot/INDEX.md`                               | `guide`                 | Index of the canon. If it is generated from the canon it is a projection.                                                                                                                                                                                                                                                                            |
| `docs/native-kanban-sot/KBN-010-THREAT-AUTH-CONSTRAINT-GATE.md` | `spec`                  | 415 lines of normative gate. `spec` fits; confirm it is not superseded by the shared contract.                                                                                                                                                                                                                                                       |
| `docs/native-kanban-sot/KBN-101-DB-ROLE-SPLIT.md`               | `spec`                  | As above.                                                                                                                                                                                                                                                                                                                                            |
| `docs/native-kanban-sot/KBN-101-ENVELOPE-A.md`                  | `spec`                  | Title says "v6, FINAL". If v6 supersedes v1-v5 elsewhere, those need `superseded-by` pointing here.                                                                                                                                                                                                                                                  |
| `docs/native-kanban-sot/SHARED-CONTRACT.md`                     | `spec`                  | "Remediated Shared Contract v1". Same versioning question.                                                                                                                                                                                                                                                                                           |
| `docs/release-integrity/probe-inventory.md`                     | `record`                | An inventory. `tracking` if probes are still being added to it.                                                                                                                                                                                                                                                                                      |
| `docs/webui/PHASE-P-STRUCTURE.md`                               | `spec`                  | Zero inbound references (plan section 5.4). Either wire it in or mark it superseded; the kind is the smaller question.                                                                                                                                                                                                                               |
| `docs/native-kanban-sot/TASKS.md`                               | **conflict**            | The file says of itself: "This file is a build plan, not a task tracker, and is NOT superseded." The contract says `tracking` is "live state, single-writer (manifests, `TASKS.md`). **Never a spec**." The file claims to be the thing its name forbids. Either the file is wrong or the contract's `TASKS.md` shorthand is.                        |
| `docs/requirements/native-kanban-sot.md`                        | **conflict**            | Plan section 5.2 says if it is hand-authored canon it is `source-of-truth`. The contract's own table says `source-of-truth` is **machine-readable**. This is prose markdown with normative MUST/MUST NOT, RATIFIED 2026-07-14, decision owner Jason. It cannot satisfy both rules. Either it is a `spec` or the machine-readable criterion is wrong. |

The last two are not slow rows, they are contradictions inside the contract. They want an
answer about the contract, not about the file.

## The contract collides with an existing one

`docs/README.md` lines 150-160 already document a front-matter convention, with its own
allowed values:

```yaml
---
title: Human-readable page title
type: guide # guide | concept | reference | decision | rfc | runbook
audience: developer # user | admin | developer | all
status: current # current | draft | deprecated | historical
source_of_truth: false
---
```

Adoption is 4 of 127 files: `docs/ADMIN-GUIDE/security/sso-providers.md`,
`docs/DEVELOPER-GUIDE/testing/lease-broker-operations.md`,
`docs/USER-GUIDE/getting-started/quickstart.md`, `docs/USER-GUIDE/product/web-dashboard.md`.

`status` is in both schemas with **disjoint vocabularies**. `type` and `kind` are two names for
one idea with different value sets. `source_of_truth: false` is a boolean spelling of
`kind: source-of-truth`.

What this pass did, and it is a decision someone should ratify or reverse: the new contract
wins. Those 4 files had `status: current` rewritten to `status: active` and gained `kind:`.
Their `title`, `type`, `audience` and `source_of_truth` keys were left alone. Nothing reads any
of them — `git grep source_of_truth` outside `docs/` returns zero hits — so no consumer broke.

`docs/README.md` still prescribes the old convention. It is an operator row above, so this pass
did not edit it. Until it is edited, the repository documents two conflicting header
conventions and points authors at the one being retired.

## The contract has no form for a YAML document

Two of the plan's 20 rows are not markdown: `docs/fleet/examples/roster-v2.yaml` and
`docs/openapi-tess.yaml`. Front matter is a markdown convention. A `.yaml` file can carry a
leading `---` document, but then it is two YAML documents and every existing parser of that
file sees a change.

This is not an edge case. It applies to **`docs/fleet/NORTH_STAR.yaml`, the source of truth
itself**, which is the one file the contract most needs to classify. Section 6 check 5 says no
document is unclassified. As written, the source of truth cannot comply.

Options, none of them chosen here: exclude `.yaml` from the contract and say so; carry their
metadata in a sidecar; or add a top-level `kind:` key inside the YAML body rather than as front
matter, which for `NORTH_STAR.yaml` is a schema change.

## Method, and what it cannot tell you

Classification is per-file, by title and path, recorded with a confidence. It is not a regex
sweep. The plan's own warning stands and is why the 19 rows above are held rather than guessed:
the first classifier pass classed a RATIFIED requirements document as a projection.

Rows marked `med` in the working manifest and not listed above: the five `docs/plans/*` specs,
`docs/fleet/migration/example-profile-disposition.md`, the one ADR
(`decisions/mos-runtime-portability-m1.md`, called `record` because an ADR records a decision
taken), and the one RFC (`rfcs/optional-ai-egress-gateways.md`, called `spec` because it
proposes work not yet built). Those eight are stamped and are the most likely to be wrong.

## Verification

- 103 of 103 files parse with the expected `kind` and `status` in front matter.
- The check was shown to reject a wrong kind before it was trusted (asserting
  `kind: record` on a file stamped `guide` fails).
- The whole diff removes 4 lines, all of them `status: current`.
- 24 files untouched, matching 19 + 3 + 1 + 1.

## Response to the W5 adversarial pass

vision ran a refute-first pass on this branch at `37cd00e` from a fresh worktree. Three of its
points changed the branch. Everything is re-measured here before being acted on; where my
measurement disagrees with its stated evidence I say so.

### 1. `docs/fleet/NORTH_STAR.md` stamp reverted (`bea47543`)

vision raised this as **latent** and scoped to the flatten PR. It is **live in this PR**, so it
could not wait.

`fleet-north-star.spec.ts:110-114` is a drift test that reads the committed file from disk and
asserts full-string equality against `renderNorthStarMarkdown()`, whose first emitted line is the
H1 and which emits no front matter. Stamping changed line 1 from the H1 to `---`.

CI 2589 confirms it directly, no longer by construction:

```
× renderNorthStarMarkdown > matches the committed NORTH_STAR.md projection (regenerate if this fails)
  → expected '# Mosaic Fleet — NORTH STAR\n\n> **Ge…' to be '---\nkind: projection\nstatus: active…'
```

Reverted to `origin/next` verbatim. `git diff origin/next -- docs/fleet/NORTH_STAR.md` is 0 lines;
control on `docs/fleet/reference/cli.md` returns 13, so the diff command does report differences.

The consequence is a contract-level one, recorded in the worklist: **the contract as written
cannot classify any generated document without a matching change to its generator.** A `projection`
is "Generated. Never hand-edited," so its header has to come out of the renderer. That is a code
change and belongs in the flatten PR beside the `resolveNorthStarPaths()` fix. vision's
recommendation, and I agree with it.

Counts: stamped 104 → **103**. Untouched 23 → **24**.

### 2. The `docs/` qualifier (vision's C1)

Stated as asked. **"127 live documentation files" is true for `docs/` only.** Definition: all
`*.md` under `docs/`, minus `docs/archive/` and `docs/_old_structure/`. 318 total = 134 archive +
57 `_old_structure` + 127 live.

Repo-wide the phrase undercounts: 21 live markdown files sit outside `docs/` and outside any named
exclusion (17 under `guides/`, plus `README.md`, `AGENTS.md`, `CLAUDE.md`, `REPORT-A1207.md` at
root). This PR does not stamp them and does not claim to.

### 3. `format` failure, and what it says about the header (`8a55c041`)

CI 2589 also failed `prettier --check` on **exactly one file**: the plan document I hand-wrote.
Reproduced locally, rc=1, same single file. Fixed; the diff is 31 lines in, 31 out, all table
column padding.

Worth stating for the review rather than burying: **the other 103 stamped documents pass
`prettier --check` unchanged.** The `---\nkind:\nstatus:\n---` block is prettier-clean as applied.
The formatting failure was in my prose, not in the contract header.

### 4. R1: the evidence inverts, the finding gets stronger

vision asks for a `kind` change on `docs/DEVELOPER-GUIDE/architecture/channel-protocol.md`, on the
grounds that it "carries 7 normative MUSTs" while the contract says `guide` "decides nothing."

**The MUST count does not hold.** Uppercase RFC2119 terms (`MUST`, `MUST NOT`, `SHOULD`,
`SHOULD NOT`, `SHALL`, `MAY`, `REQUIRED`) in that file: **0 lines**. Control: the identical grep
returns 25 lines in `docs/requirements/native-kanban-sot.md`, so it finds them where they exist.
The seven lowercase "must" occurrences all _disclaim_ authority rather than assert it: "must not be
used as instructions", "must not be treated as current behavior", "must remain planned work", "must
first specify", "before it can become architecture guidance." The file's own banner reads "it is
not a runtime registry, an API contract, a requirements document."

**The citation half holds, and is larger than stated.** vision's line numbers are exact. I
restated them earlier with wrong directories, which is worth naming because it is the same method
failure fred and I already wrote up as C3 in the flatten plan: I matched on basename and assumed
the path. The real ones, plus the two vision did not list:

| citing document                                         | line | words used                                          |
| ------------------------------------------------------- | ---- | --------------------------------------------------- |
| `docs/ADMIN-GUIDE/security/discord-ingress.md`          | 141  | "**canonical** shared-contract and parity boundary" |
| `docs/DEVELOPER-GUIDE/integrations/channel-adapters.md` | 28   | "The **canonical** architecture summary is"         |
| `docs/DEVELOPER-GUIDE/integrations/channel-adapters.md` | 183  | "**Canonical** channel protocol architecture"       |
| `docs/USER-GUIDE/workflows/discord-conversations.md`    | 127  | "current shared types ... explicit parity boundary" |
| `docs/SITEMAP.md`                                       | 54   | index entry                                         |
| `docs/DEVELOPER-GUIDE/architecture/README.md`           | 18   | index entry                                         |

So the tension is real. Three live documents outside the two indexes cite it, across four
citations, and three of those four use the word "canonical" for a document that spends its own
banner denying it is canonical. **It is just not a MUST problem, and that
changes what the fix is.** If the file is telling the truth about itself, the three "canonical"
citations are wrong and the edit belongs in those three files, not in this one's `kind`.

**Left as `kind: guide` in this PR and flagged for the reviewer's call.** Restamping on evidence
that inverts on reading would be worse than leaving it stamped and named.

### Unchanged

vision's C2 (no consumer), C4 (holding `parent` blocks nothing) and C5 (a front-mattered `.yaml`
throws in `YAML.parse`) all reverified. C1's arithmetic closes at the stated ref.

## fred's six decisions, applied

Ruled on PR #1350 as comment 23693. Each is applied here; each is his call, not mine, and any of
them is one line to reverse.

| #   | decision                                                                                                        | applied as                                                                                                       |
| --- | --------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
| A   | New contract wins; `docs/README.md` is rewritten in this PR and the 4 old-schema files convert in the same pass | `docs/README.md:149-190` rewritten; `type:` dropped from the 4 files, `title`/`audience`/`source_of_truth` kept  |
| B   | `source-of-truth` leaves the `kind` enum and returns as an orthogonal boolean                                   | enum is now 6 values; `docs/requirements/native-kanban-sot.md` stamped `kind: spec` + `source_of_truth: true`    |
| C   | `status` gains a third value, `completed`                                                                       | the two executed plans take it (evidence below)                                                                  |
| D   | Kind follows content, never filename                                                                            | `docs/native-kanban-sot/TASKS.md` stamped `kind: spec`, because its body says "a build plan, not a task tracker" |
| E   | The contract covers `.md` only, stated as a decision rather than left as a gap                                  | written into `docs/README.md` with vision's `YAML.parse` measurement as the reason                               |
| F   | `channel-protocol.md` becomes `spec`                                                                            | applied, with one correction and one consequence below                                                           |

### C: evidence the two plans are complete

Neither plan self-declares completion, so this is measured from the artifacts rather than taken
from the documents:

- `2026-08-10-ci-queue-purpose-implementation.md` — the shipped guard carries the flag the plan
  specifies: `ci-queue-wait.sh --purpose push|merge`, exercised in this session at rc=0.
- `2026-08-10-docs-structure-readme.md` — every section the plan specifies exists in
  `docs/README.md` today, including the Obsidian conventions and the source-of-truth precedence
  block. This PR is editing the artifact that plan produced.

### F: the MUST count does not hold, and the fix changes shape

Applied as ruled. But the ruling's stated grounds are half wrong, and the half that survives points
somewhere else, so this is the one to look at again.

**Zero** uppercase RFC2119 terms in `channel-protocol.md`, not seven. Control: the identical grep
returns 25 lines in `docs/requirements/native-kanban-sot.md`. The seven lowercase "must"
occurrences all _disclaim_ authority: "must not be used as instructions", "must not be treated as
current behavior", "must remain planned work".

**The citation half holds and is bigger than stated** (table in the section above).

**The consequence of applying F:** the file is now stamped `spec` while its own banner says "it is
not a runtime registry, an API contract, a requirements document." Header and body now contradict
each other, which is the defect this pass exists to remove. Either the banner is edited in this PR,
or the three documents calling it canonical are the ones that are wrong. That is a content call and
it is left to the reviewer rather than folded into a stamping pass.

## Q1 — the one question this pass cannot answer for itself

`docs/README.md` now **prescribes** the document contract, and it is the only live document under
`docs/` with no `kind`. It is still on the operator-held list, so it is left unstamped.

By decision B it is arguably `kind: spec` with `source_of_truth: true` for the subject "document
contract". The reason this is not applied unilaterally: it decides which document outranks the
other when `docs/README.md` and `docs/plans/2026-08-20_stack-docs-flatten-and-alignment.md` disagree
about the contract, and they already differ (the plan's enum has 7 values, the README's now has 6).
That is an authority question, not a classification one.

## The old schema DID have a consumer, and CI found it

vision's C2 concluded "no consumer found" after searching by parsing primitive rather than by key
name. fred's decision A rested on "no installed base to protect." I accepted both. **All three of
us were wrong, and the full test suite is what proved it.**

`packages/mosaic/src/installation-documentation.spec.ts:39` asserted:

```ts
expect(markdown).toMatch(/^---\n[\s\S]*?\nstatus: current\n[\s\S]*?\n---\n/);
```

That is a raw regex over the markdown text, not a front-matter parse and not a key lookup, which is
exactly why a search organised around parsing primitives could not see it. It pins
`docs/USER-GUIDE/getting-started/quickstart.md` to the old vocabulary. Replacing `status: current`
with `status: active` turned it red.

Updated to `status: active`, the contract's value for "in force", with the reason in a comment
beside it. Verified by evaluating both regexes against the real file: old `false`, new `true`.
Control: a page carrying `superseded-by` still fails the new regex, so the assertion still asserts
something rather than matching anything with front matter.

**The method point, which outlives this file.** CI 2592 ran the whole suite against the stamped
tree, 46 turbo tasks, and returned exactly one failing spec: this one. That is a stronger consumer
search than any grep the three of us ran, because it does not depend on guessing how a consumer
reads the file.

An earlier draft of this paragraph put a test count here, "1617 tests, 1 failed". **That number was
wrong and it is withdrawn.** Extracting per-test totals from these pipeline logs is not reliable:
the same regex over the same log format returns 1003 for 2592, 1022 for 2593 and 3471 for 2594,
which are runs of the same suite. Three irreconcilable answers from one method is proof the method
does not measure what it claims. What the log does carry reliably is the FAIL list and the turbo
task line, so the claim is stated in those terms instead. The point never needed the count: one
named failing spec is what refuted three hand-searches. **Run the suite before concluding a
documentation change has no code consumers.** Two independent seats and a reviewer searching by
hand missed the one that existed.

## fred's second pass: F withdrawn, Q1 answered

Both changes below are fred's rulings, applied. Neither is my judgement and I record whose it is.

### F is withdrawn: `channel-protocol.md` returns to `kind: guide`

Reverted. fred re-measured the file himself with a control and reached the count I reported: zero
uppercase RFC2119 terms case-sensitive, seven lowercase `must`, every one disclaiming authority,
under a banner that refuses requirements status. A page like that is a guide.

The reason this matters past one stamp is fred's own: F rested on "the doc graph outranks the
page's own banner", which contradicts his decision D, "kind follows content, never the filename and
never what other documents say about it". D is the rule. F was a counterexample to it, written in
the same comment.

Neither rescue was taken. vision's adjective edit on the three citing docs and an edit to the
page's banner would both have preserved a stamp that should not have been made. The three citing
documents stay as they are: under vision's index-pointer reading, "canonical" claims the best page
on a subject rather than normative force, so there is nothing to correct.

**What this costs the contract: nothing, and that is the point.** A kind that survives only by
editing the evidence around it is not a classification.

### Q1 answered: `docs/README.md` is stamped `kind: spec`, `source_of_truth: true`

Applied. By D, a document that prescribes the contract has spec content. By B, `source_of_truth` is
an orthogonal boolean and this is the authoritative statement of the contract, so it carries both.

The authority half of Q1 was whether stamping the README settles a conflict with the flatten plan,
whose enum still has seven values against the README's six. fred's ruling: **a plan never outranks
the artifact it planned.** The plan's enum is pre-decision-B staleness, not a competing authority.
The plan is fred's file and he corrects it there.

The contract now applies to the document that states it. That was the only state in which it could
be credible.

### Verification arithmetic, re-closed

128 live `.md` under `docs/` = **108 stamped** + 16 operator-held + 3 supersede deferrals + 1
generated. The stamped count rose by one and the operator-held set fell by one, both because of the
README; every other row is unchanged. Control unchanged: the verifier reports `valid=False` when a
kind is corrupted to `nonsense`.

### One consumer finding that is not a defect

A sweep of every spec reading a path under `docs/` returns 10 files. Four read a live file:
`fleet-north-star.spec.ts` and `installation-documentation.spec.ts` (both already caught by CI),
`mutator-gate.acceptance.spec.ts` reading `compaction-revocation.md`, which passes under its `guide`
stamp, and `roster-v2.spec.ts:366`, which reads `docs/fleet/reference/roster-v2.schema.json`.

The fourth is a real read of a real live file under `docs/` and is untouched only because decision E
scopes the contract to `.md`. Had the contract covered every file under `docs/`, front matter in
that JSON schema would have broken the spec, the same failure as the quickstart regex. E was
load-bearing beyond the YAML-parse grounds it was decided on. No action; recorded so the `.md`
boundary is not widened later without re-running this sweep.
