skills: the .agents/ copies and t27/wave-audit also open with the Only-t27 rule #7592

Goal

Every skill entry file in the repository opens with the Only-t27 rule block, not only the ones under .claude/skills/.

Where we are

#7588 / PR #7589 add the <!-- only-t27-rule --> block to the 18 skill entry files under .claude/skills/. Five skill entry files live outside that directory and are not covered:

• .agents/skills/phi-loop/SKILL.md
• .agents/skills/tri-pipeline/SKILL.md
• .agents/skills/tri/skill.md
• .agents/skills/wrap-up/skill.md
• t27/wave-audit/SKILL.md

An agent that loads one of these copies never sees the rule. The owner asked on 2026-10-08 (translated from Russian): "Write in every skill that we write everything in .t27!"

Boundary

The five files listed above. Prose only (.md). The block text is byte-identical to the one in #7589. No code, no generated files, no change to .claude/skills/.

User Scenarios & Testing

• Given an agent loads any of the five skills, when it reads the file, then the Only-t27 block is the first thing after the title.

Requirements

• FR-1: each of the five files contains the marker <!-- only-t27-rule --> exactly once, directly after its # title.
• FR-2: the block text equals the block in docs(skills): every skill opens with the Only-t27 rule (Closes #7588) #7589.

Success Criteria

• grep -L 'only-t27-rule' .agents/skills/*/[Ss][Kk][Ii][Ll][Ll].md t27/wave-audit/SKILL.md prints nothing.
• grep -c 'only-t27-rule' on each of the five files returns 1.