Sem / Inspect / Weave

This skill teaches a single coherent workflow:

sem -> inspect -> weave

Use it when you need entity-level understanding (functions/classes/properties), risk-focused review prioritization, and safe merge/coordination semantics.

When to Use

• Semantic or entity-level diff analysis (not just line diffs)
• Impact questions (what else breaks if this entity changes?)
• Risk triage (what deserves careful review first?)
• Branch integration prep / semantic conflict analysis
• Multi-agent overlap (avoid false conflicts)

When Not to Use

• Trivial changes where direct reading is cheaper
• Any workflow that would mutate repo merge configuration by default

Reasoning Model

1. Discover changes -> sem
2. Understand impact -> sem impact / sem graph / sem blame
3. Prioritize review -> inspect
4. Coordination + merge semantics -> weave

Tool Roles

Trigger Phrases

• semantic diff
• entity-level diff
• use sem to analyze changes
• review this change semantically
• analyze impact of this change
• find risky entities in this diff
• prioritize review for this commit
• prepare safe merge
• detect semantic conflicts

Typical Workflows

Review last commit

sem diff --from HEAD~1 --to HEAD --format json
inspect diff HEAD~1 --format json

Review branch vs main

sem diff --from origin/main --to HEAD --format json
inspect diff origin/main..HEAD --format json

Analyze refactor impact

sem impact <entity>
sem graph

Prepare merge safely

weave preview main

Weave Safety Rules

Run weave only when:

• merge conflicts exist
• multiple agents/branches touched the same entities or adjacent semantic areas
• preparing branch integration
• semantic conflict context is explicitly needed

Never run weave setup unless the user explicitly asks (it mutates repo merge-driver configuration).

Wrapper Policy

Scripts in scripts/ are optional helpers.

• You may call sem, inspect, and weave directly.
• Use wrappers only to standardize structured output and reduce boilerplate.

Output Contract

1. Structural changes (entities) from sem.
2. Review hotspots and risk ranking from inspect.
3. Merge/coordination risks from weave (or explicitly state weave was not needed).