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write-spike

Use when starting a new initiative spike, investigating technical feasibility, assessing impact across services, or writing an engineering discovery document — produces a structured spike doc with diagrams and a private notes file

72

Quality

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

SKILL.md
Quality
Evals
Security

Security

2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.

Medium

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: 0.75). The required workflow can ingest outsider-authored free text from runtime-fetched external documentation: Agent D “External Documentation” extracts URLs from the ticket description and fetches them (via CLI tools like `curl`), then the fetched page body becomes readable text in the LLM context.

Report incorrect finding
Medium

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

Potentially malicious external URL detected (high risk: 0.90). The skill's Phase 1 "External Documentation" step explicitly extracts URLs from ticket descriptions and fetches them at runtime using CLI tools (gh, curl), then injects those fetched docs into the agent's context/instructions (e.g., external docs or markdown viewer links such as https://markdownviewer.pages.dev), so these runtime-fetched URLs can directly control prompts.

Repository
AndreJorgeLopes/proof-of-skill
Audited
Security analysis
Snyk

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.