chore: sync mops-cli skill from upstream cli-v2.16.1

[marc0olo]

Syncs mops-cli from caffeinelabs/mops cli-v2.15.2 → cli-v2.16.1.

Upstream delta

One added sentence in Enhanced migrations:

After mops check --fix (or mops check <canister>) confirms the chain
compiles, run mops build to produce the wasm artifact.

Body is 1:1 with upstream (no icskills-owned sections).

Changes

• Add build-after-check sentence to Enhanced migrations
• Bump compatibility → mops >= 2.16.1
• Update .claude/upstream.md (tag, full commit SHA 4bccdc13b512048f41b3296c3590b776c1836fe1, last synced 2026-07-10)
• Reword Migration-workflow eval to assert on written guidance rather than command execution (the "how do I" prompt elicits instructions, not runs)

Eval

Migration workflow (#6) — with baseline

Migration workflow: WITH 5/5 | WITHOUT 5/5

  WITH skill: 5/5 passed
    ✅ Recommends `mops check --fix` (or `mops check backend`) to verify the migration resolves the error
    ✅ Places `mops build` after the check step — never before
    ✅ Does NOT suggest `mops migrate new` (command no longer exists)
    ✅ Does NOT suggest `mops migrate freeze` (command no longer exists)
    ✅ Does NOT suggest adding `--enhanced-migration` to mops.toml manually (mops auto-injects it)

  WITHOUT skill: 5/5 passed
    (same 5 behaviors)

Reworded behaviors now pass with the skill. No with/without delta on this case — its regression value is guarding the removed-command (mops migrate new/freeze) and manual --enhanced-migration pitfalls.

Closes #239

[github-actions]

Skill Validation Report

Validating skill: /home/runner/work/icskills/icskills/skills/mops-cli

Structure

• Pass: SKILL.md found

Frontmatter

• Pass: name: "mops-cli" (valid)
• Pass: description: (341 chars)
• Pass: license: "Apache-2.0"
• Pass: compatibility: (14 chars)
• Pass: metadata: (2 entries)

Markdown

• Pass: no unclosed code fences found

Tokens

File	Tokens
SKILL.md body	2,745
Total	2,745

Content Analysis

Metric	Value
Word count	1,506
Code block ratio	0.30
Imperative ratio	0.09
Information density	0.20
Instruction specificity	0.60
Sections	23
List items	9
Code blocks	15

Contamination Analysis

Metric	Value
Contamination level	low
Contamination score	0.01
Primary language category	shell
Scope breadth	2

• Warning: Language mismatch: config (1 category differ from primary)

Result: passed

Project Checks

✓ Project checks passed for 1 skills (0 warnings)