ci-gates SKILL.md: sections 546, 547 and 548 each appear twice on master #3399

Three section numbers collide in .claude/skills/ci-gates/SKILL.md on origin/master.

Measured

Counting ^## <N>\. headings on origin/master:

• 559 numbered sections, highest is 597
• duplicated numbers: 546, 547, 548 — each appearing twice

The set is stable: the same three duplicate on the base and on a branch that only appends a new section, so nothing recent introduced them.

Why this is the expected failure

This is the collision the numbering resolver exists for. Two branches each append the next free number against the same base; neither side carries a conflict, because appending different text at the end of a file is not a textual conflict. The merge creates the defect, not either branch — which is why review on either side would not have caught it, and why a squash merge hides the relationship.

Not fixed here

Renumbering rewrites section identity, and sections are cited by number in commit messages, issues and other skill sections (see §550), so a renumber needs its own review and a pass over the citations. Deliberately left out of #3398, which only appends §598 and was verified append-only (first 916,851 characters byte-identical to master).

What is worth deciding: whether the numbering should be resolved at merge time by a tool, or whether duplicate numbers are acceptable and citations should move to slugs instead.

Boundary

• .claude/skills/ci-gates/SKILL.md