ktg-plugin-marketplace/plugins/ultra-cc-architect/skills/cc-architect-catalog/skills-reference.md
Kjell Tore Guttormsen ab504bdf8c refactor(marketplace): split cc-architect from ultraplan-local into its own plugin
Extract `/ultra-cc-architect-local` and `/ultra-skill-author-local` plus all 7
supporting agents, the `cc-architect-catalog` skill (13 files), the
`ngram-overlap.mjs` IP-hygiene script, and the skill-factory test fixtures
from `ultraplan-local` v2.4.0 into a new `ultra-cc-architect` plugin v0.1.0.

Why: ultraplan-local had drifted into containing two distinct domains — a
universal planning pipeline (brief → research → plan → execute) and a
Claude-Code-specific architecture phase. Keeping them together forced users
to inherit an unfinished CC-feature catalog (~11 seeds) when they only
wanted the planning pipeline, and locked the catalog and the pipeline into
the same release cadence. The architect was already optional and decoupled
at the code level — only one filesystem touchpoint remained
(auto-discovery of `architecture/overview.md`), which already handles
absence gracefully.

Plugin manifests:
- ultraplan-local: 2.4.0 → 3.0.0 (description + keywords updated)
- ultra-cc-architect: new at 0.1.0 (pre-release; catalog is thin, Fase 2/3
  of skill-factory unbuilt, decision-layer empty, fallback list still
  needed)

What stays in ultraplan-local: brief/research/plan/execute commands, all
19 planning agents, security hooks, plan auto-discovery of
`architecture/overview.md` (filesystem-level contract, not code-level).

What moved (28 files via git mv, R100 — full history preserved):
- 2 commands, 8 agents, 1 skill catalog (13 files), 2 scripts, 8 fixtures

Documentation updates: plugin CLAUDE.md and README.md for both plugins,
root README.md (added ultra-cc-architect section, updated ultraplan-local
section), root CLAUDE.md (added ultra-cc-architect to repo-struktur),
marketplace.json (registered ultra-cc-architect), ultraplan-local
CHANGELOG.md (v3.0.0 entry with migration guidance).

Test verification: ngram-overlap.test.mjs passes 23/23 from new location.

Memory updated: feedback_no_architect_until_v3.md now points at the new
plugin and reframes the threshold around catalog maturity rather than an
ultraplan-local milestone.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-30 17:18:47 +02:00

2.8 KiB

name description layer cc_feature source concept last_verified ngram_overlap_score review_status
skills-reference CC skills — auto-invoked domain modules with SKILL.md, frontmatter triggers, and file-hierarchy discovery. reference skills https://docs.claude.com/en/docs/claude-code/skills skills-system 2026-04-18 null approved

Skills — Reference

Claude Code's skill system is a way to package domain knowledge, workflows, and supporting files so Claude can load them on demand. A skill is a directory with a SKILL.md manifest and any auxiliary files (scripts, templates, references).

Anatomy

  • SKILL.md — the entry point. Markdown file with YAML frontmatter and a body. The frontmatter declares when the skill triggers; the body is instructions Claude follows after loading.
  • Auxiliary files — any files in the skill directory. Loaded on demand (typically by Claude reading them when the body references them). Common: scripts/, templates/, references/.

Frontmatter

---
name: <skill-name>
description: <one-line trigger hint>
---

The description is what Claude sees when deciding whether to invoke. It should describe when to use the skill, not what it does.

Invocation

  • Auto-invocation — Claude loads the skill when the user's prompt matches the description's triggers. The trigger model is implicit (natural-language match), not regex.
  • Manual invocation — the user types /<skill-name> and Claude calls the Skill tool.
  • Never auto-invoked — if the description explicitly says so ("Internal catalog for X — not invoked directly"), Claude typically respects the hint.

Discovery

Skills are discovered from:

  • Built-in skills — shipped with the CLI.
  • Plugin skills — packaged inside a plugin's skills/ directory.
  • User skills~/.claude/skills/.
  • Project skills.claude/skills/ inside the repo.

The CLI surfaces available skills via --allowedTools and in the system prompt.

Progressive disclosure

Skills use progressive disclosure:

  1. Claude sees only the name + description at session start.
  2. When a skill triggers, the body loads into context.
  3. Files referenced by the body load only when Claude reads them.

This keeps the baseline context small; depth is paid for on demand.

Relationship to other features

  • Skills vs subagents — a skill lives in the parent's context when loaded. A subagent runs in its own context. Choose skill when the context flows through; subagent when it should not.
  • Skills vs hooks — hooks are deterministic harness-level rules. Skills are context that Claude interprets. A skill cannot enforce; only guide.
  • Skills vs MCP — MCP exposes tools. Skills are knowledge. An MCP tool + a skill that explains when to use it is a common pairing.