feat(skills): add code-wiki skill — closes #486 (#32240)

* feat(skills): add code-wiki skill — closes #486 Bundled skill at skills/software-development/code-wiki/ that generates comprehensive documentation for any codebase: project overview, architecture walkthrough with Mermaid flowchart, per-module deep-dives, class diagram, sequence diagrams, getting-started guide, and (when applicable) API reference. Output defaults to ~/.hermes/wikis/<repo-name>/ (external to repo, like Google CodeWiki); in-repo output supported when user explicitly requests it. Uses only existing Hermes tools (terminal, read_file, search_files, write_file) — no Docker, no external services, no extra dependencies. Works on local repos and GitHub URLs (shallow-clones to a temp dir). Bounded scope defaults (depth 3, cap 10 modules) keep token cost reasonable on large repos. * refactor(skills): move code-wiki to optional-skills Per the 'when in doubt, optional' rule — wiki generation is a 'I want this big thing right now' capability, not daily-driver behavior. Lines up with finance/research/blockchain skills as install-on-demand rather than always loaded. Install via: hermes skills install official/software-development/code-wiki
2026-05-25 14:48:53 -07:00
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+# {{PROJECT_NAME}}
+
+{{ONE_PARAGRAPH_DESCRIPTION}}
+
+## Key Concepts
+
+- **{{CONCEPT_1}}** — {{ONE_LINE}}
+- **{{CONCEPT_2}}** — {{ONE_LINE}}
+- **{{CONCEPT_3}}** — {{ONE_LINE}}
+
+## Entry Points
+
+- [`{{PATH_1}}`]({{LINK_1}}) — {{WHAT_IT_DOES}}
+- [`{{PATH_2}}`]({{LINK_2}}) — {{WHAT_IT_DOES}}
+
+## High-Level Architecture
+
+{{TWO_TO_THREE_SENTENCES}}
+
+See [architecture.md](architecture.md) for the full picture.
+
+## Module Map
+
+| Module | Purpose |
+|---|---|
+| [`{{MODULE_1}}`](modules/{{MODULE_1}}.md) | {{ONE_LINE_PURPOSE}} |
+| [`{{MODULE_2}}`](modules/{{MODULE_2}}.md) | {{ONE_LINE_PURPOSE}} |
+
+## Getting Started
+
+See [getting-started.md](getting-started.md).
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+# Architecture
+
+{{TWO_TO_THREE_PARAGRAPHS_SHAPE_OF_SYSTEM}}
+
+## Components
+
+- **{{COMPONENT_1}}** — {{ONE_TO_TWO_SENTENCES}} See [`modules/{{MODULE}}.md`](modules/{{MODULE}}.md).
+- **{{COMPONENT_2}}** — {{ONE_TO_TWO_SENTENCES}}
+
+## System Diagram
+
+```mermaid
+flowchart TD
+    User([User]) --> Entry[Entry Point]
+    Entry --> Core[Core Engine]
+    Core --> StorageA[(Database)]
+    Core --> ExternalAPI{{External API}}
+```
+
+## Data Flow
+
+1. **{{STEP_1}}** — [`{{FILE}}`]({{LINK}})
+2. **{{STEP_2}}** — [`{{FILE}}`]({{LINK}})
+3. **{{STEP_3}}** — [`{{FILE}}`]({{LINK}})
+
+## Key Design Decisions
+
+- {{DECISION_1}}
+- {{DECISION_2}}
+- {{DECISION_3}}
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+# Getting Started
+
+## Prerequisites
+
+- {{LANGUAGE_RUNTIME_VERSION}}
+- {{DEPENDENCY}}
+
+## Installation
+
+```bash
+{{INSTALL_COMMANDS}}
+```
+
+## First Run
+
+```bash
+{{FIRST_RUN_COMMAND}}
+```
+
+You should see {{EXPECTED_OUTPUT}}.
+
+## Common Workflows
+
+### {{WORKFLOW_1}}
+
+```bash
+{{COMMANDS}}
+```
+
+### {{WORKFLOW_2}}
+
+```bash
+{{COMMANDS}}
+```
+
+## Configuration
+
+Key config files and settings:
+
+- `{{CONFIG_FILE}}` — {{WHAT_IT_CONTROLS}}
+- Env var `{{VAR}}` — {{WHAT_IT_CONTROLS}}
+
+## Where to Go Next
+
+- Architecture overview: [architecture.md](architecture.md)
+- Module reference: [README.md#module-map](README.md#module-map)
+- Diagrams: [diagrams/](diagrams/)
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+# Module: `{{MODULE_NAME}}`
+
+{{ONE_TO_TWO_SENTENCE_PURPOSE}}
+
+## Responsibilities
+
+- {{BULLET_1}}
+- {{BULLET_2}}
+- {{BULLET_3}}
+
+## Key Files
+
+- [`{{PATH_1}}`]({{LINK_1}}) — {{WHAT_IT_DOES}}
+- [`{{PATH_2}}`]({{LINK_2}}) — {{WHAT_IT_DOES}}
+
+## Public API
+
+### `{{FUNCTION_NAME}}({{SIGNATURE}})`
+
+{{ONE_LINE_DESCRIPTION}}
+
+**Parameters:**
+- `{{PARAM}}` ({{TYPE}}) — {{DESCRIPTION}}
+
+**Returns:** {{TYPE}} — {{DESCRIPTION}}
+
+## Internal Structure
+
+{{HOW_THE_MODULE_IS_ORGANIZED}}
+
+## Dependencies
+
+- **Used by:** {{OTHER_MODULES}}
+- **Uses:** {{OTHER_MODULES_AND_LIBS}}
+
+## Notable Patterns / Gotchas
+
+- {{ANYTHING_NON_OBVIOUS}}