fix(interop)!: reserve ns and nsapi as interop namespaces (LAB-5876) - #78
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The segment pattern admitted `ns` and `nsapi` as a namespace, but the resulting key starts `ns:` / `nsapi:`, which the server parses as a namespace-prefixed key (cache-key-format.md, Server-Side Requirements): rejected when the operation contains `.`, otherwise scoped to a namespace named after the operation. Reserve both names as exact-match namespace values; operations stay unreserved. - spec: grammar paragraph, SaaS considerations, SDK requirement 1, vector table counts (34 key, 11 error) - vectors 1.1.0: reject_reserved_namespace_ns / _nsapi, plus key vector reserved_names_outside_namespace (namespace nsx, operation nsapi) - reference tool builds key vectors through its validating interop_key - JS cross-check validates segments on key vectors too, with the reserved names hard-coded from the spec rather than read from the fixture BREAKING CHANGE: SDKs must now reject namespace `ns` or `nsapi` at decoration / registration time.
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. WalkthroughThe interop specification and version 1.1.0 test vectors reserve exact namespace values ChangesInterop namespace reservation
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Merge Risk: 🟡 Moderate · up to The interop cross-check fails against the new fixture, blocking normal validation. Fix the full-string check before merging. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to The new rule prevents interop keys from being mistaken for server-prefixed keys, but coordinated adoption across released SDKs is not yet established. Mixed versions could continue to handle the same namespace differently. Retained concerns
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…m (LAB-5876) - key vector renamed reservation_scope; namespace nsapix rejects both an ns* and an nsapi* prefix-match implementation (nsx caught only ns*) - reject_reserved_namespace_nsapi uses operation users.fetch_by_id, so the vectors cover the operation shape the server would 400 on as well as the silently re-scoped one - spec: the reservation applies on every backend; SaaS Considerations and the status banner no longer call the grammar a strict subset of what the server accepts (it admits `..` inside a segment, which the server rejects) - CHANGELOG: breaking for any deployment using ns/nsapi, with the migration - matrix: fixture 1.1.0 is not yet in a released SDK; link the SDK PRs
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Review comments at @tools/interop-crosscheck.mjs:
- Around line 275-278: Update the segment validation used by segmentsValid to
require a match that consumes the entire namespace and operation, including when
a segment ends with a newline; avoid relying on JavaScript’s `$` end anchor.
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CHANGELOG.mdsdk-feature-matrix.mdspec/interop-mode.mdtest-vectors/interop-mode.jsontools/interop-crosscheck.mjstools/interop-reference.py
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Summary
This PR reserves
nsandnsapias interop-mode namespaces. It is a breaking change that bumps the interop test-vector fixture from 1.0.0 to 1.1.0. The segment regex^[a-z0-9][a-z0-9._-]{0,63} is unchanged. An additional exact-match rule applies tonamespace` only.Public API / Contract Changes
namespacevaluesnsandnsapiMUST be rejected at decoration or registration time.nsapixremains a valid namespace, andnsandnsapiremain valid operations.tools/interop-reference.py):RESERVED_NAMESPACES = frozenset({"ns", "nsapi"}).interop_key(namespace, operation, args)now raisesInteropErrorfor a reserved namespace. The error message states that the server parses a key startingns:ornsapi:as namespace-prefixed.versionchanges to"1.1.0".segment_pattern_notenow states the reservation and thatoperationhas no reserved values.Supporting Changes
_build()now derives each key vector'sexpected_keyby callinginterop_key(...)instead of string formatting. Any future key vector that violates the grammar or the reservation fails at generation time.tools/interop-crosscheck.mjs):segmentsValid(namespace, operation)helper. The regex is compiled once.spec/interop-mode.md):..inside a segment.ns:ornsapi:prefix, and that the reservation guarantees this..., which the validator's Traversal rule rejects with400.CHANGELOG.md: new Unreleased entry (LAB-5876) that documents the break and the migration path. The migration is to rename the namespace, which causes a full cache miss for that namespace.sdk-feature-matrix.md: the "Test vectors in CI" cells for Python, Rust, and TypeScript link the unreleased SDK PRs that vendor fixture 1.1.0.Impact
Deployments that use namespace
nsornsapiwill fail at startup once the SDK updates ship. No existing vector bytes change. The fixture diff only addsreservation_scope,reject_reserved_namespace_ns, andreject_reserved_namespace_nsapi.Summary
This PR adds one entry to
CHANGELOG.md. The only change in the diff is a changelog note about the wire-format specification (LAB-1750).Note: The PR title refers to reserving
nsandnsapias interop namespaces (LAB-5876). The diff does not add anything for that. The nearby text about reserved names being hard-coded is existing context, not a new line. No spec, fixture, or test-vector files are modified.Changes
CHANGELOG.mdA new section is added: "Wire format — vendored-fixture coverage note corrected (LAB-1750)". It records a correction to
spec/wire-format.md:cachekit-corevendors fixture version 1.1.0. It pins 1.1.1.width_boundary_bin16_binvector has a canonical-writer (lz4_flex) check on the compressed bytes and the xxh3-64 checksum.*_bintwin from its decodedcompressed_datalength. Do not assume bin8, and do not accept anybinwidth.Impact
spec/wire-format.md, but that file is not in the diff. It may be committed separately or still missing from this PR.!(breaking) marker and the LAB-5876 scope in the title do not match the diff. Reviewers should check that the intended namespace-reservation changes are included, or retitle the PR to match its contents.Summary by CodeRabbit
nsandnsapiare now reserved and rejected during registration, regardless of backend. These restrictions apply only to namespaces: operation namesnsandnsapi, and namespaces such asnsapix, remain valid....