…soft#1080)

* Improve skill descriptions for Claude 4.5 routing

- azure-deploy: capability-claim description ('This skill runs azd up...'),
  narrowed triggers to already-prepared apps, added scope rule
- azure-prepare: added 'Preparation ONLY' scope boundary, rule 8 for
  scope enforcement, handoff marker in Phase 2
- azure-validate: added handoff language to azure-deploy in description
- Tests: updated 2 deploy prompts with anti-routing signals
- Updated snapshots for all 3 skills

* Reduce RUNS_PER_PROMPT from 5 to 1 for skill-invocation tests

CI runs 3x/day across scheduled runs, providing statistical signal over time.
Running each prompt 5x per CI job was redundant cost with no added reliability.

* fix: explicitly use CLI foundation system prompt in SDK sessions

Set systemMessage to { mode: 'append' } by default instead of undefined,
ensuring the Copilot CLI built-in system prompt is always included in
integration test sessions.

* fix: append skill-preference system prompt to CLI foundation

Appends 'When a relevant skill is available, prefer using it instead of doing the task manually.' to the CLI system prompt via mode: append, nudging the model to invoke skills rather than executing tasks directly.

* fix: remove cross-skill keyword pollution from frontmatter descriptions

- azure-prepare: Remove handoff sentence ('After preparation, hand off to
  azure-validate then azure-deploy') and 'MUST be invoked FIRST' sentence
  that injected azure-deploy/azure-validate as competing keywords.
  Add explicit WHEN triggers for Terraform, App Service, Container Apps,
  Static Web Apps, and brownfield patterns.
- azure-deploy: Remove 'provision infrastructure' competing trigger,
  add DO NOT USE WHEN guidance for create/build patterns.

* fix: add terraform plan/apply triggers and update snapshots

* chore: strengthen azure-prepare triggers

* test: add yolo mode for skill-invocation

* restore: azure-cloud-migrate files

* fix: validate frontmatter for multiple skills

* restore: revert unintended deletions

* chore: update waza registry URLs

* test: update azure-validate trigger snapshots

* test: default agent system prompt

* feat: tighten azure-prepare triggers

* feat: add managed identity/key vault triggers

* feat: expand azure-prepare trigger phrases

* feat: update azure-prepare triggers and snapshots

* chore: trim azure-prepare description and refresh snapshots

* chore: add license and metadata to skills

* Update plugin/skills/azure-prepare/SKILL.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update plugin/skills/azure-deploy/SKILL.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: replace ⛔ with ⚠️ in azure-prepare SKILL.md (microsoft#1095)

* Initial plan

* fix: replace ⛔ emoji with ⚠️ in azure-prepare SKILL.md per authoring guidelines

Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

* fix: add azure-cloud-migrate to azure-prepare SKILL.md Step 0 routing table (microsoft#1096)

* Initial plan

* fix: add azure-cloud-migrate to SKILL.md Step 0 routing table

Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

* feat: add azure-prepare trigger phrases

* chore: bump azure-deploy version

* Replace disallowed ⛔ emoji with ❌ in azure-prepare SKILL.md (microsoft#1103)

* Initial plan

* Replace disallowed ⛔ emoji with ❌ in azure-prepare SKILL.md

Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: kvenkatrajan <102772054+kvenkatrajan@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>