Google Sheets: Read and write spreadsheets.
55
45%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/gws-sheets/SKILL.mdQuality
Discovery
32%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 is too terse—it identifies the platform and two basic operations but lacks specific capabilities, trigger guidance, and natural keyword variations. It would benefit significantly from listing concrete actions and adding an explicit 'Use when...' clause to help Claude select it appropriately among competing skills.
Suggestions
Add a 'Use when...' clause with trigger terms like 'Google Sheets', 'gsheets', 'spreadsheet data', 'sheet formulas', 'Google Spreadsheet'.
List more specific concrete actions such as 'create and edit cells, apply formulas, format ranges, manage tabs, and import/export data'.
Include file-type or platform-specific keywords to distinguish from Excel or generic spreadsheet skills, e.g., 'Google Workspace', 'Sheets API', '.gsheet'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Google Sheets) and two actions (read and write), but does not list more specific concrete actions like creating formulas, formatting cells, creating charts, or managing multiple sheets. | 2 / 3 |
Completeness | Describes what it does (read and write spreadsheets) but has no 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill, which per the rubric caps completeness at 2, and the 'what' is also quite thin, warranting a 1. | 1 / 3 |
Trigger Term Quality | Includes 'Google Sheets' and 'spreadsheets' which are relevant keywords, but misses common variations like 'gsheets', '.gsheet', 'Google Spreadsheet', 'cells', 'rows', 'columns', or 'tabular data'. | 2 / 3 |
Distinctiveness Conflict Risk | 'Google Sheets' is fairly specific and distinguishes it from generic spreadsheet or Excel skills, but 'spreadsheets' is broad enough to potentially overlap with Excel or other spreadsheet-related skills. | 2 / 3 |
Total | 7 / 12 Passed |
Implementation
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill serves as a reasonable hub/overview for Google Sheets operations, with good progressive disclosure through linked helper commands and a prerequisite reference. However, it lacks concrete executable examples of actual API calls and includes verbose API method descriptions that add little value. The workflow for common operations could be more explicit.
Suggestions
Add 1-2 concrete, copy-paste-ready examples showing common operations (e.g., reading a range, updating cells) with actual `gws sheets` commands including `--params` flags.
Trim API resource descriptions to just method names and brief labels (e.g., `batchUpdate — Apply multiple updates`, `get — Get spreadsheet by ID`) since Claude can discover details via `gws schema`.
Add an explicit workflow for write operations that includes a validation/verification step (e.g., read back after write to confirm changes).
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly efficient, but the long descriptions of API methods (e.g., batchUpdate, get, getByDataFilter) include verbose explanations that Claude already knows or could discover via `gws schema`. These could be trimmed to just method names and one-line summaries. | 2 / 3 |
Actionability | Provides concrete CLI commands for discovery (`gws sheets --help`, `gws schema`) and references helper commands, but lacks executable examples of actual read/write operations. There are no copy-paste-ready examples showing how to actually use `gws sheets spreadsheets.values.get --params ...` or similar. | 2 / 3 |
Workflow Clarity | The discovery workflow (browse → inspect → build flags) is present but implicit. There's no explicit sequenced workflow for common tasks like reading or writing data, and no validation/verification steps for operations that modify spreadsheets. | 2 / 3 |
Progressive Disclosure | Well-structured with clear one-level-deep references to helper commands (+append, +read) and the shared prerequisite skill. The content is appropriately split between this overview and linked sub-skills, with clear navigation via the helper commands table. | 3 / 3 |
Total | 9 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
metadata_field | 'metadata' should map string keys to string values | Warning |
Total | 10 / 11 Passed | |
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