fix(kyberforge): improve skill-author based on spec validation and audit

- Add name field format constraints (1-64 chars, hyphens rules)
- Add output format template pattern to ## Patterns
- Add scope design note before prerequisites checklist
- Add reference depth rule (one level deep)
- Restore Placement table to README
- Trim script rules to 2 inline + full contract in references/scripts.md
- Add script contract section to references/scripts.md (error messages,
  dry-run/confirm pairing, output size, idempotency, exit codes)
- Update Step 5 headings to "Validate and close" in both flows
- Remove "Performs best when preceded by grill session" from description
- Condense Include/Exclude block to single forwarding sentence
- Fix README Files table: add README.md row, update scripts.md description

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016z2ZFYHQCex8yZAMVMTZzZ

plugins/kyberforge/skills/skill-author/README.md

@@ -12,6 +12,15 @@ Routes to one of two flows based on context: if no skill directory exists at the
 - Collect domain research, examples, and constraints
 - Know the skill name (kebab-case) and destination path
 
+## Placement
+
+| Type | Path |
+|------|------|
+| Direct (available immediately after install) | `~/.agents/skills/<name>/` |
+| Plugin (installed via marketplace) | `plugins/<plugin>/skills/<name>/` |
+
+If the destination is inside a plugin directory, read `references/deployment-modes.md` — cache isolation rules apply.
+
 ## Usage
 
 ```
@@ -22,10 +31,11 @@ Routes to one of two flows based on context: if no skill directory exists at the
 
 | File | Purpose |
 |------|---------|
+| `README.md` | Human-readable overview of the skill and its files |
 | `SKILL.md` | Skill instructions for agents |
 | `scripts/new-skill.sh` | Copies annotated templates to the destination to scaffold a new skill |
 | `references/deployment-modes.md` | Plugin vs standalone differences and cache isolation rules (loaded on demand) |
-| `references/scripts.md` | Package runner table and inline dependency patterns (loaded on demand) |
+| `references/scripts.md` | Package runners, inline dependency patterns, and full script contract (loaded on demand) |
 | `assets/templates/SKILL.md` | Annotated SKILL.md template |
 | `assets/templates/README.md` | Annotated README template for the new skill |
 | `assets/templates/scripts/README.md` | Placeholder for bundled scripts |