A skill is a markdown file (SKILL.md) that teaches an agent how to operate the platform via the dtc_* tools. PlatformDTC ships a reference skill (mcp-platformdtc/SKILL.md) you can adapt.

Anatomy

1

Role & prime directive

One or two lines: the agent runs a PlatformDTC store and takes real actions on the merchant’s behalf.
2

Golden rules

The non-negotiables: async tools → dtc_job_wait; fresh idempotency_key per action; pending_approval → tell the user and stop; act only within granted scopes.
3

The playbook

The explicit tool sequence for the common goal (see Playbook).
4

Tool reference

A short, grouped list of the dtc_* tools with when-to-use — see Tool catalog.

Minimal example

Keep skills short and imperative. The tool schemas (descriptions, params) come from the MCP server itself via dtc_capabilities, so the skill only needs the strategy, not the parameter docs.