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slack-client-fundamentals

Foundation skill for Slack Go SDK. Use when setting up a new Slack bot, initializing the API client, choosing between Web API vs Socket Mode vs Events API, implementing error handling patterns, or establishing testing strategies for Slack applications.

64

Quality

80%

Does it follow best practices?

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tessl review fix ./plugins/slack-go-sdk/skills/slack-client-fundamentals/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

65%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.

The body is well-organized, code-first, and actionable for client setup, mode selection, and error handling, but it reads as an unsequenced reference rather than a workflow and its progressive-disclosure structure is undermined by references to files that are missing from the bundle. The redundant configuration pointer and generic project-layout tree also cost token efficiency.

Suggestions

Fix the reference paths to skill-relative links (references/client-configuration.md, references/testing-patterns.md) and ensure those files actually exist in the skill bundle, removing the duplicate pointer in the Configuration Best Practices section.

Frame the body as a sequenced setup workflow (initialize client → choose connection mode → wire error handling → test) with a validation checkpoint such as an auth.test() call to verify the token before proceeding.

Complete the context example by passing ctx to a real API call (e.g., api.PostMessageContext(...)) and drop or shrink the generic Go project-layout tree, which duplicates knowledge Claude already has.

DimensionReasoningScore

Conciseness

Mostly lean — code-first sections, brief decision bullets, no padding explaining what Slack or Go is. Not 5 because the generic Go project-structure tree is knowledge Claude already has, and "Configuration Best Practices" repeats the client-configuration.md pointer already given under Client Initialization.

4 / 5

Actionability

Largely copy-paste-ready code: slack.New with OptionDebug/OptionRetry, the RateLimitedError type-assertion pattern, and the firewall decision matrix. Not 5 because the context snippet is incomplete — the ctx is created but never passed to a call ("// Pass context to API methods that support it" is a comment, not executable code) — and some pitfalls bullets give direction without specifics ("implement exponential backoff" despite the body preferring OptionRetry).

4 / 5

Workflow Clarity

Sections imply a setup progression (init → choose mode → error handling → testing) but never sequence it as a workflow, and there are no validation checkpoints (e.g., verifying the client authenticates or Socket Mode connects). Not 4 because nothing is framed as ordered steps with checkpoints; not below 3 since each section's guidance is individually unambiguous and no destructive/batch operations require the cap.

3 / 5

Progressive Disclosure

Good section structure and clearly deferred detail (testing and configuration pushed to reference files, one level deep), but both referenced files — ../../references/client-configuration.md and ../../references/testing-patterns.md — do not exist in the bundle, and the ../../ prefix escapes the skill directory. Broken navigation plus the duplicated client-configuration pointer keeps this below 4 despite solid organization.

3 / 5

Total

14

/

20

Passed

Description

88%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 strong description: concrete capability list, explicit and specific 'Use when' triggers, third-person voice, and a clear niche. Only minor gaps — a few natural synonyms (golang, websocket, rate limits) and slight trigger overlap with sibling Slack skills.

DimensionReasoningScore

Specificity

The description enumerates concrete capabilities — "setting up a new Slack bot, initializing the API client, choosing between Web API vs Socket Mode vs Events API, implementing error handling patterns, or establishing testing strategies" — matching the comprehensive multi-action anchor. Not 4 because coverage of the foundation domain is complete rather than having minor gaps.

5 / 5

Completeness

Explicitly answers both: what ("Foundation skill for Slack Go SDK" with the enumerated capability gerunds) and when ("Use when setting up a new Slack bot, initializing the API client, choosing between Web API vs Socket Mode vs Events API...") with concrete trigger phrases. The 'Use when' clause is present and highly specific, so this is not the anchor-4 case where the 'when' could be more explicit.

5 / 5

Trigger Term Quality

Good natural trigger coverage: "Slack bot", "Slack Go SDK", "API client", "Socket Mode", "Events API", "error handling", "testing strategies". Not 5 because a few natural user phrasings are absent (e.g., "golang", "websocket", "rate limits"), though the keywords frontmatter partially compensates.

4 / 5

Distinctiveness Conflict Risk

Clear niche (Slack + Go SDK fundamentals) with mostly distinct triggers. Not 5 because the "Web API vs Socket Mode vs Events API" decision framing overlaps with what dedicated sibling skills (e.g., a realtime-events skill) would also match, a minor overlap risk with closely related skills.

4 / 5

Total

18

/

20

Passed

Validation

87%

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

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

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

Warning

relative_links

Relative link issues: 3 suspicious

Warning

Total

14

/

16

Passed

Repository
freightCognition/linehaulai-claude-marketplace
Reviewed

Table of Contents

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