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openai-responses

Build agentic AI with OpenAI Responses API - stateful conversations with preserved reasoning, built-in tools (Code Interpreter, File Search, Web Search), and MCP integration. Prevents 11 documented errors. Use when: building agents with persistent reasoning, using server-side tools, or migrating from Chat Completions/Assistants for better multi-turn performance.

75

Quality

72%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

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npx tessl skill review --optimize ./skills/openai-responses/SKILL.md
SKILL.md
Quality
Evals
Security

Security

3 findings — 3 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: 1.00). The skill explicitly uses the web_search tool (real-time web information) and MCP tool connections to arbitrary external server URLs—see SKILL.md "Built-in Tools" / references/built-in-tools-guide.md and the templates (templates/cloudflare-worker.ts, templates/mcp-integration.ts) where web_search and mcp server_url are invoked—and those third‑party results are consumed and used to drive responses and tool actions, creating a clear path for indirect prompt injection.

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: 0.80). The skill's runtime examples explicitly pass MCP server URLs (e.g., https://mcp.stripe.com, https://dmcp.example.com, https://db-mcp.example.com) into openai.responses.create so the Responses API will query those servers for tool definitions and invoke their call endpoints at runtime, which can directly control agent tooling/behavior and execute remote actions.

Medium

W009: Direct money access capability detected (payment gateways, crypto, banking)

What this means

The skill is specifically designed for direct financial operations, giving the agent the ability to move money or execute financial transactions — such as payment processing, cryptocurrency operations, banking integrations, or market order execution.

Why it was flagged

Direct money access detected (high risk: 1.00). The skill explicitly documents MCP server integration with payment gateways, naming Stripe and providing a concrete example ("Get my Stripe balance") that uses an MCP server labeled 'stripe' with an authorization token. MCP is described as a built-in connector for external tools (Stripe, databases, custom APIs) and shows the flow for invoking those servers (including authorization and user approval). These are specific, non-generic references to a payment gateway API and an example of performing financial queries via that connector, which meets the criteria for Direct Financial Execution capability.

Repository
jezweb/claude-skills
Audited
Security analysis
Snyk

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