AD ucp-gateway-skill
MCP Tools skill for AI agent commerce. Use when a user wants agentic Shopping to search/compare products, prepare a buyer-confirmed cart, and create a merchant-hosted checkout handoff link, or when an agent needs to register/reuse a hosted UCP identity (agent_id). Provider-neutral UCP Shopping MCP tools; no scraping and no payment handling.
MCP Tools skill for AI agent commerce.
As a process D 48/100 · Unfinished process — weak spots: result and completion, when it triggers, inputs and preconditions
How to improve
- Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
- A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.
Guard findings · 0
✓ No critical or high findings
Files scanned: 10. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- note
edit-residuethe text marks something as outdated (lines 7): check that old rules are not kept next to new ones — the full check reads the text for contradictions
Process rating: all ten parameters 48/100
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 0Progress reporting. Says nothing while it works
- 20When it triggers. No condition that starts the skill
- 30Running it twice. 5 mutating operations with no state check
- 50Failures and branches. 0 branches, has a failure section
- 60Tools and files. Uses tools (web, python) that frontmatter does not declare
- 100Steps. 29 steps
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 1256 tokens
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.
Quality signals
- +5Description has no quoted example phrases that should trigger the skill
- +4Description does not say when NOT to use the skill (false activations)
- +3Output format is not stated: the model decides each time
- +4No input/output examples
- -31 of 4 scripts are never mentioned in SKILL.md
- +2Single-language instructions
- +3Description length 342: enough signal without eating the budget
- +4Structure: 8 headings
- +3Step-by-step instructions: 29 items
- +1License stated
Quality base 70; lint remarks subtract, signals add up to 100. Result: 78.