copilot-agent-advisor

Recommends which Microsoft 365 / Copilot Studio agent option fits a described scenario — using Microsoft 365 Copilot as-is, building a standard (declarative) agent, or building a custom (custom engine) agent — and which Copilot Studio harness to build on (GitHub Copilot, standard, or Copilot chat). Use when the user asks "which agent type should I build", "declarative vs custom engine agent", "standard agent or custom agent", "should I use Copilot Studio or Microsoft 365 Copilot", "which Copilot Studio harness", "help me choose a Copilot agent", or describes an agent scenario and wants a recommendation. Do NOT use to actually build, deploy, configure, or write code for an agent, and do NOT use for non-agent product comparisons — this skill only advises on the choice. For general capability questions about Microsoft 365 Copilot, answer directly instead of invoking this skill.

Agent Skill from microsoft/cat-agent-skills

Copilot Studio

Passes documented load rules

No documented load rule failed.

Warnings (don't change the verdict):

Warning: Description is a single line (CS-DESC-ONELINE)
description spans more than one line
rule · Copilot Studio: Troubleshoot skills that don't load

Microsoft 365 Copilot Preview, Frontier tenants only

Passes documented load rules

No documented load rule failed.

An agent can have at most 8 skills. Custom skills aren't available in tenants that use Microsoft Purview Information Barriers.

Compatible isn't the same as safe. These verdicts only say whether a skill's files follow Microsoft's documented load rules. The checker reads files and never runs them, and it doesn't review what a skill or its scripts actually do. Read a skill's instructions and scripts before you add it to an agent.

Standards signals

Meets the agentskills.io required fields.

Frontmatter	Present and parsed Spec: frontmatter
name	Meets the spec (1-64 chars, a-z 0-9 hyphens) Spec: name
description	Present, 1-1,024 characters Spec: description
compatibility	Absent or under 500 characters Spec: compatibility
Name matches folder	Yes (`copilot-agent-advisor`) Spec: name

Observed from the public SKILL.md at the commit above on 2026-10-23. Not a certification: AAIF and the Agent Skills project don't certify skills. Validate your own skill with skills-ref validate.

Source repo	microsoft/cat-agent-skills
Path	submissions/copilot-agent-advisor/SKILL.md
Commit checked	`a9bc9b236b7d`
Repo license	MIT
Files	3
Scripts	None
Instructions	12,540 characters
Deepest folder	0 below the skill folder
Rules version	2026-10-22

Re-check the latest version How skill checks work

Is this wrong or out of date? Email us. Skills data built 2026-10-23; rules as of 2026-10-22.

Rule-based checks of public files against Microsoft's documented load rules, not tested in Copilot Studio or Microsoft 365 Copilot. Independent project, not affiliated with Microsoft.