docs(spec): reframe 7-segment key format as SDK convention; add server-side requirements - #17
docs(spec): reframe 7-segment key format as SDK convention; add server-side requirements#1727Bslash6 wants to merge 3 commits into
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…r-side requirements
The CachekitIO validator is now security-only (saas#91): percent-decode,
length cap, charset whitelist, '..' rejection, ns:/nsapi: namespace
shape. The 7-segment grammar is Python SDK convention, not a server
contract — TS/Rust {ns}:{hash} and interop-mode keys are valid on the
wire.
- cache-key-format.md: new Server-Side Requirements section + note on
the Full Key Structure
- interop-mode.md: status DRAFT -> SERVER-SUPPORTED (SDK generation
still pending, Issue #1)
- test-vectors/cache-keys.json: key_format/note fields updated
Co-authored-by: multica-agent <github@multica.ai>
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Auto-rebase sweep: merging
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Picking a side asserts one version's facts over the other without verifying against the actual cachekit-py implementation — needs a human call. |
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Conflict resolution (verified against ground truth):
- spec/interop-mode.md status block: keep main's interop/v1 shipped status
(true: SDKs shipped on PyPI/npm/crates.io), fold in this PR's server-side
line (true: saas#231 shrank the validator to security-only, merged
2026-07-17, closing saas#91). Drop the PR's stale 'SDK-side generation is
not yet implemented'.
- spec/interop-mode.md SaaS Considerations: update main's pre-saas#231
WARNING ('deployed validator would reject interop keys, saas#91 MUST land
first') to a NOTE stating the shrink landed — required so the merged spec
does not contradict this PR's Server-Side Requirements section.
- test-vectors/cache-keys.json: keep main's generator v0.12.0 +
ci_verification, keep this PR's SDK-convention annotations in note and
key_format. Vectors byte-identical to main.
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WalkthroughThe specifications now distinguish Python SDK key conventions from server-enforced rules. They document opaque cross-SDK and interop keys, security-only validation, namespace handling, and related cache-key vector metadata. ChangesCache key specification alignment
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The PR reframes 7-segment keys as an SDK convention and documents server-side enforcement, but the current text still risks misleading SDK authors about cross-SDK cache compatibility and leaves default-namespace write authorization insufficiently specified. These bounded interoperability and permission risks should be clarified or explicitly accepted before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Linked Issues checkExplanation The PR updates the three linked specification and test-vector files, but it does not implement the required validator refactor, PII protections, namespace write separation, RPC-path quota enforcement, or validator unit tests required by issue Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (3 skipped: 3 unsupported.) ✨ Finishing Touches🧪 Generate unit tests (beta)
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Resolved conflicts in Resolution notes — both sides carried one stale claim each, verified before resolving:
All CI gates verified locally before push: Python reference verifies (wire-format, interop v1/v2, encryption, python-frame, file-backend), JS cross-checks, and version-floor guards — all green. |
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Actionable comments posted: 2
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Inline comments:
In `@spec/cache-key-format.md`:
- Around line 100-101: Update the cache-key write-authorization rules to
explicitly cover unprefixed keys in the default namespace, distinguishing
ck_sdk_ and ck_api_ credentials as required while defining a narrowly bounded
migration exception for ck_live_ credentials. Add request-level coverage for
default-namespace writes using ck_sdk_, ck_api_, and ck_live_ keys, including
permitted and rejected cases.
In `@test-vectors/cache-keys.json`:
- Line 5: Update the note in the cache-key vectors to explicitly mark them as
Python-SDK-only; remove the implication that other SDKs can substitute their
module path while retaining a shared-cache-compatible key, and direct cross-SDK
validation to the Interop Mode vectors instead.
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…son Python-only Addresses the two CodeRabbit findings on #17. Server-Side Requirements omitted the rule the deployed validator actually has for unprefixed keys: saas apps/cache/src/cache-key-validator.ts classes them `open` (namespace `default`) and the write-space 403 gate in index.ts only fires for the `sdk`/`api` classes. So interop-mode and TS/Rust {ns}:{hash} keys are writable by any key class and get none of the intra-tenant write-space isolation. That is a consequence SDK implementors need stated, not inferred. Also states that per-key namespace grants still apply (a namespace-restricted key must include `default`) and that ck_live_ has no server-side retirement date — recorded as fact, not policy: this spec describes the deployed validator, it does not legislate for it. cache-keys.json's note told other SDKs to "substitute their own module path; only the args hash must match". A different func: segment is a different key, so that can never yield a shared-cache hit, and the arg-hash algorithm itself (msgpack([args, sorted_kwargs]) with Python normalization) is not what interop/v1 hashes. The vectors are Python-SDK-only; cross-SDK conformance is interop-mode.json. The same claim in the spec's Test Vectors section is fixed to match. Vector bytes untouched; cachekit-py vendors its own sha256-pinned copy so its CI is unaffected.
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| | Traversal | `..` is rejected anywhere in the key. | | ||
| | Namespace | Keys starting `ns:{namespace}:` or `nsapi:{namespace}:` must have a namespace of 1–64 chars of `[a-zA-Z0-9_-]`. Keys without either prefix scope to the `default` namespace. | | ||
| | Write spaces | `ns:` keys are mutable only by SDK (`ck_sdk_`) API keys; `nsapi:` keys only by direct (`ck_api_`) API keys. Reads are open to both. Legacy `ck_live_` keys predate the split and are exempt from it — they may write either class. No server-side retirement date is set for `ck_live_`. | | ||
| | Default namespace | Keys with neither prefix (TypeScript/Rust `{ns}:{hash}`, [Interop Mode](interop-mode.md) keys, bare hashes) are an **open** write space: any key class may write them, so the intra-tenant write-space isolation above does not protect them. Per-key namespace grants still apply — an API key restricted to named namespaces must include `default` to read or write unprefixed keys. | |
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Violates team rule 'Avoid the 'any' type': Detect the use of the 'any' type in TypeScript. Using 'any' disables type checking and can lead to runtime errors. Recommend using specific types or generics instead.
Prompt for LLM
File spec/cache-key-format.md:
Line 102:
Violates team rule 'Avoid the 'any' type': Detect the use of the 'any' type in TypeScript. Using 'any' disables type checking and can lead to runtime errors. Recommend using specific types or generics instead.
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Companion to cachekit-io/saas#231 (closes cachekit-io/saas#91).
The CachekitIO validator is now security-only; the 7-segment grammar is Python SDK convention, not a server contract.
[a-zA-Z0-9_.:-]charset,..rejection,ns:/nsapi:namespace shape, write-space split), plus a note on the Full Key Structure marking it SDK-internal.{ns}:{op}:{hash}keys (scoped to thedefaultnamespace); SDK-side generation remains pending (design: cross-SDK interop mode for cache key and value format #1).key_format/notefields updated with the convention-vs-contract framing. No vector values changed — cross-SDK byte compatibility untouched.Summary by CodeRabbit