langchain-upgrade-migration
Upgrade LangChain SDK versions safely with import path migration, LCEL conversion from legacy chains, and agent API updates. Trigger: "upgrade langchain", "langchain migration", "langchain breaking changes", "update langchain version", "langchain 0.3", "langchain deprecation".
89
88%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
100%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a strong skill description that clearly defines its scope (LangChain SDK version upgrades), lists specific concrete actions (import path migration, LCEL conversion, agent API updates), and provides excellent explicit trigger terms. It occupies a clear niche with minimal conflict risk and uses appropriate third-person voice throughout.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'import path migration', 'LCEL conversion from legacy chains', and 'agent API updates'. These are clearly defined, actionable capabilities. | 3 / 3 |
Completeness | Clearly answers both 'what' (upgrade LangChain SDK versions with import path migration, LCEL conversion, agent API updates) and 'when' (explicit trigger terms listed with a 'Trigger:' clause serving as the 'Use when' equivalent). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural trigger terms users would say: 'upgrade langchain', 'langchain migration', 'langchain breaking changes', 'update langchain version', 'langchain 0.3', 'langchain deprecation'. These are realistic phrases a developer would use. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive — targets a very specific niche (LangChain SDK version upgrades) with domain-specific terms like 'LCEL', 'langchain 0.3', and 'legacy chains' that are unlikely to conflict with other skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a strong, highly actionable migration guide with clear step-by-step workflows, concrete before/after code examples, and good validation checkpoints including a comprehensive checklist and error table. Its main weakness is length — covering both TypeScript and Python inline for every step makes it verbose, and the content could benefit from splitting language-specific details into separate files for better progressive disclosure.
Suggestions
Consider splitting TypeScript and Python migration details into separate referenced files (e.g., MIGRATION_TS.md and MIGRATION_PY.md) to reduce the main skill's token footprint and improve progressive disclosure.
Remove the overview paragraph since the title and step headers already convey the purpose; the initial version check command provides sufficient context.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient with concrete before/after code examples, but it's quite long (~180 lines) and includes both TypeScript and Python for every step, which may be unnecessary if the project context is clear. Some sections like the overview paragraph restate what the title already conveys. | 2 / 3 |
Actionability | Every step includes fully executable, copy-paste ready code examples with clear OLD vs NEW patterns for both TypeScript and Python. Commands for checking versions, upgrading packages, and running tests are all concrete and specific. | 3 / 3 |
Workflow Clarity | The 7-step sequence is clearly ordered with a logical progression: check versions → migrate imports → convert chains → migrate agents → migrate memory → upgrade packages → run tests. Includes a validation step (Step 7) with deprecation warning checks, a comprehensive migration checklist, and an error handling table for common failure modes. | 3 / 3 |
Progressive Disclosure | The content is well-structured with clear headers and a logical flow, but it's monolithic — all migration details for both languages are inline rather than split into separate reference files. The error handling table and migration checklist could be separate files, and language-specific guides could be broken out for better navigation. | 2 / 3 |
Total | 10 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
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