stitch::react-native
Convert Stitch HTML designs to React Native components, or syncs/updates existing native components to align with the latest Stitch designs, using StyleSheet.
Security
1 high severity finding. 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
The skill explicitly requires calling MCP to retrieve download URLs and then embedding those exact URLs into shell commands (bash scripts/fetch-stitch.sh), which forces the LLM to handle and output potentially sensitive presigned/download tokens verbatim.
Low
Low-risk findings.
2 low severity findings. Worth noting, but not necessarily harmful.
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
Phase 1 requires fetching Stitch design HTML/screenshots via `scripts/fetch-stitch.sh` using MCP `get_screen` download URLs, which are then read back as local HTML text and screenshots for theme extraction/visual audit—i.e., outsider-authored free text from external storage feeds into the agent’s LLM context through the downloaded `.stitch/designs/{page}.html` content.
W012: Unverifiable external dependency detected (runtime URL that controls agent).
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
The skill explicitly instructs the agent at runtime to download external Stitch design artifacts via the fetch script using the download URLs "[htmlCode.downloadUrl]" and "[screenshot.downloadUrl]=w{width}", and those fetched HTML/screenshots are parsed and injected into the agent workflow to extract theme tokens and drive code generation, so remote content directly controls the agent's outputs.
- Repository
- google-labs-code/stitch-skills
- Commit
535b088
- Audited
- Security analysis
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.