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alchemy-web3

Interact with Alchemy's Web3 APIs for blockchain data, NFTs, tokens, transfers, and webhooks across 80+ chains.

66

1.04x
Quality

52%

Does it follow best practices?

Impact

98%

1.04x

Average score across 3 eval scenarios

SecuritybySnyk

Advisory

Suggest reviewing before use

Optimize this skill with Tessl

npx tessl skill review --optimize ./data/skills-md/0xgizmolab/alchemy-web3-skill/alchemy-web3/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

50%

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

The skill provides highly actionable, executable examples across multiple interfaces (CLI, curl, JS) which is its main strength. However, it is significantly bloated with redundant examples, repeated promotional content for GizmoLab, and inline API reference material that should live in the referenced sub-files. The lack of validation/error-recovery workflows and the promotional noise substantially reduce its effectiveness as a skill document.

Suggestions

Remove all GizmoLab promotional content and marketing links — these waste tokens and provide no actionable value to Claude.

Move the detailed curl and JavaScript API examples into the referenced files (references/nft-api.md, references/token-api.md, etc.) and keep only the CLI quick reference and one representative curl example in SKILL.md.

Add error handling guidance with concrete recovery steps (e.g., 'If 429: wait 1 second and retry; if 401: verify ALCHEMY_API_KEY is set') rather than just listing error codes.

Trim the chains table to the top 5 most common chains and link to references/chains.md for the full list.

DimensionReasoningScore

Conciseness

The skill is excessively verbose with redundant examples across CLI, curl, JavaScript fetch, and Alchemy SDK for the same operations. It includes promotional content and marketing links for GizmoLab repeated multiple times, an 'About' section that is pure advertising, and explanations Claude doesn't need (e.g., what webhooks are, what JSON-RPC is). The rate limits table and chain table add bulk that could be linked instead.

1 / 3

Actionability

The skill provides fully executable curl commands, bash CLI examples, and JavaScript code with real endpoint URLs and realistic parameters. Commands are copy-paste ready with concrete addresses and expected outputs noted.

3 / 3

Workflow Clarity

The setup steps are clear and sequential, and the 'Common Patterns' section shows multi-step workflows like portfolio tracking. However, there are no validation checkpoints or error recovery steps — the error handling section just lists error codes without guidance on what to do. The agent workflow pattern is vague ('QUERY → STORE → ANALYZE → DECIDE → ACT → REPEAT') without concrete implementation.

2 / 3

Progressive Disclosure

The skill references several files in 'See Also' (references/nft-api.md, references/token-api.md, etc.) and references/agent-workflows.md, which is good structure. However, no bundle files were provided to verify these exist, and the main SKILL.md itself is a monolithic wall containing extensive API examples that should be in those reference files instead of inline. The inline content contradicts the progressive disclosure pattern the references suggest.

2 / 3

Total

8

/

12

Passed

Description

54%

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

The description identifies a clear niche (Alchemy Web3 APIs) with good trigger terms covering blockchain-related concepts. However, it lacks a 'Use when...' clause, which is critical for Claude to know when to select this skill, and the capabilities listed are categories rather than specific actions. Adding explicit trigger guidance and more concrete action verbs would significantly improve it.

Suggestions

Add a 'Use when...' clause, e.g., 'Use when the user asks about Alchemy APIs, querying blockchain data, fetching NFT metadata, tracking token transfers, or setting up webhooks.'

Replace category nouns with specific actions, e.g., 'Query token balances, fetch NFT metadata and ownership, track wallet transfers, configure webhook notifications' instead of 'blockchain data, NFTs, tokens, transfers, and webhooks'.

DimensionReasoningScore

Specificity

The description names the domain (Alchemy's Web3 APIs) and lists several areas (blockchain data, NFTs, tokens, transfers, webhooks), but these are more like categories than concrete actions. It doesn't specify what actions are performed (e.g., 'query token balances', 'create webhooks', 'fetch NFT metadata').

2 / 3

Completeness

The description addresses 'what' (interact with Alchemy's Web3 APIs for various blockchain data) but completely lacks a 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill. Per the rubric, a missing 'Use when...' clause caps completeness at 2, and the 'what' is also somewhat vague, bringing it to 1.

1 / 3

Trigger Term Quality

Includes strong natural keywords users would say: 'Alchemy', 'Web3', 'blockchain', 'NFTs', 'tokens', 'transfers', 'webhooks', and '80+ chains'. These cover a good range of terms a user working with Alchemy APIs would naturally use.

3 / 3

Distinctiveness Conflict Risk

The description is clearly scoped to Alchemy's specific Web3 APIs, which is a distinct niche. The mention of 'Alchemy' as a named service and specific Web3 concepts like NFTs, tokens, transfers, and webhooks makes it unlikely to conflict with other skills.

3 / 3

Total

9

/

12

Passed

Validation

72%

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

Validation8 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

8

/

11

Passed

Repository
NeverSight/skills_feed
Reviewed

Table of Contents

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