odyssey4me/google-sheets
Read, write, and format Google Sheets spreadsheets. Manage cell values, ranges, formulas, pivot tables, and charts. Use when asked to update a gsheet, edit a Google spreadsheet, add formulas, or work with spreadsheet data.
89
89%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Risky
Do not use without reviewing
Security
2 findings — 1 high severity, 1 medium severity. You should review these findings carefully before considering using this skill.
W007: Insecure credential handling detected in skill instructions
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
Insecure credential handling detected (high risk: 1.00). The skill instructs storing and passing OAuth client_id/client_secret (including examples showing --client-secret and config file fields), which encourages embedding secrets verbatim in commands/files and thus exposes them.
W011: Third-party content exposure detected (indirect prompt injection risk)
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
Third-party content exposure detected (high risk: 0.80). The skill's values read command (SKILL.md examples and scripts/google-sheets.py cmd_values_read which calls service.spreadsheets().values().get(...)) fetches arbitrary Google Sheets content (user-generated/untrusted data from third-party Google-hosted documents) that the agent is expected to read and could materially influence subsequent actions, so it exposes the agent to indirect prompt-injection risk.
- Audited
- Security analysis