Copilot Studio
Needs changes- Fails: Frontmatter has a non-empty description (CS-DESCRIPTION)
description is missing or empty
rule · Copilot Studio: Troubleshoot skills that don't load
Microsoft 365 Copilot Preview, Frontier tenants only
Needs changes- Fails: SKILL.md has a name and description in YAML front matter (M365-FRONTMATTER)
Missing description
rule · Microsoft 365 Copilot: What is a skill
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
Doesn't meet every agentskills.io required field.
| Frontmatter | Problem found Spec: frontmatter |
| name | Meets the spec (1-64 chars, a-z 0-9 hyphens) Spec: name |
| description | Missing or over 1,024 characters Spec: description |
| compatibility | Absent or under 500 characters Spec: compatibility |
| Name matches folder | Yes (score-eval)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 | neondatabase/agent-skills |
| Path | evals/neon-postgres-egress-optimizer/.claude/skills/score-eval/SKILL.md |
| Commit checked | d814689cbba1 |
| Repo license | Apache-2.0 |
| Files | 1 |
| Scripts | None |
| Instructions | 459 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Is this wrong or out of date?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.