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warehouse-source-new-version

Add support for a new vendor API version to an existing Data warehouse import source, or deprecate an old one. Use when a vendor ships a new API version (Stripe date versions, Shopify quarterly versions, header-pinned revisions, /vN/ URL bumps), when implementing a version-update or deprecation task for a source under products/warehouse_sources/backend/temporal/data_imports/sources, or when repinning an ExternalDataSource to a different version. Covers deciding whether a newly announced version needs supporting at all, version declaration, dispatch, pinning semantics, deprecation metadata, and migration scripts.

65

Quality

77%

Does it follow best practices?

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tessl review fix ./.agents/skills/warehouse-source-new-version/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

67%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A thorough, well-structured instruction skill with concrete file/field references, explicit gates, and clear deprecation workflow. It is somewhat verbose and restates core invariants across several sections, which costs token efficiency without adding clarity for a competent reader.

Suggestions

Consolidate the pinning/dispatch rules so each invariant appears once; the same 'resolve via resolve_api_version, never hardcode a fallback' and 'don't silently move customers' points are repeated across 'How versioning works', the step list, 'Pinning semantics', and 'Common pitfalls'.

Tighten the longest sentences (e.g. the multi-clause dispatch paragraph) into shorter statements or a short list to improve scannability.

Consider moving the long 'Common pitfalls' enumeration into a separate reference file so the main workflow stays lean, since the skill already exceeds 100 lines.

DimensionReasoningScore

Conciseness

The body is dense and mostly signal-dense, but several sentences are very long and restate the same invariant multiple ways (e.g. the pinning/dispatch rules are restated across 'How versioning works', the step list, 'Pinning semantics', and 'Common pitfalls'), adding tokens a competent reader could be spared.

3 / 5

Actionability

Gives concrete, executable guidance—specific files (sources/common/base.py, workflow_activities/import_data_sync.py), named fields, a concrete dispatch pattern (resolve_api_version → stripe_source → StripeClient(stripe_version=...)), and a PR title convention; minor gaps are that examples are illustrative rather than copy-paste blocks.

4 / 5

Workflow Clarity

The 'Adding a new version, step by step' and 'Deprecating a version' sections are clearly numbered and sequenced with explicit validation gates (the diff gate, 'only once the gate says the version has to exist', idempotent/reviewable migration, the registry invariant test catching mistakes); minor gaps are that some checkpoints are prose rather than explicit verify-then-proceed markers.

4 / 5

Progressive Disclosure

Content is well-sectioned into overview, gate, steps, deprecation, pinning semantics, pitfalls, and self-improvement with no external bundle files; given there are no separate files to reference, the single-file organization is appropriate and navigable, with only minor inlining of material that could conceptually split.

4 / 5

Total

15

/

20

Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A specific, well-scoped description that names concrete versioning actions, real trigger terms, and an explicit 'Use when' clause tied to a precise codebase path. Distinctiveness is strong because the triggers are anchored to warehouse source version bumping.

Suggestions

Consider adding the natural shorthand 'API version bump' or 'version upgrade' as an explicit trigger synonym, since a user might phrase the request that way.

DimensionReasoningScore

Specificity

Lists several concrete actions tied to this domain—'version declaration, dispatch, pinning semantics, deprecation metadata, and migration scripts'—with minor gaps in coverage but no vague fluff.

4 / 5

Completeness

Explicitly answers both 'what' (add/deprecate a vendor API version; covers declaration, dispatch, pinning, deprecation, migration) and 'when' with a concrete 'Use when...' clause naming the triggering scenarios and the relevant source path.

5 / 5

Trigger Term Quality

Includes natural trigger phrases users would say ('Stripe date versions', 'Shopify quarterly versions', 'header-pinned revisions', '/vN/ URL bumps', 'repinning an ExternalDataSource'), with a few common synonyms (e.g. plain 'API version bump') lightly implied rather than stated.

4 / 5

Distinctiveness Conflict Risk

The trigger is scoped to a specific product path (products/warehouse_sources/.../data_imports/sources) and named vendor versioning schemes, giving it a clear niche with minimal overlap risk against other skills.

5 / 5

Total

18

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
PostHog/posthog
Reviewed

Table of Contents

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