# Official Documentation References

URLs and references for all platforms and tools used by codebase-context-skill.

## Claude Code
- Skills documentation: https://code.claude.com/docs/en/skills
- How Claude Code works: https://code.claude.com/docs/en/how-claude-code-works
- Model configuration: https://code.claude.com/docs/en/model-config
- Cost management: https://code.claude.com/docs/en/costs
- CLAUDE.md reference: https://code.claude.com/docs/en/claude-md
- Hooks: https://code.claude.com/docs/en/hooks
- Agent Skills specification: https://github.com/anthropics/skills/blob/main/spec/agent-skills-spec.md
- Agent Skills repository: https://github.com/anthropics/skills

## Claude API / Models
- Claude 4.6 models: https://platform.claude.com/docs/en/about-claude/models/whats-new-claude-4-6
- Context windows: https://platform.claude.com/docs/en/build-with-claude/context-windows
- Compaction: https://platform.claude.com/docs/en/build-with-claude/compaction

## Model IDs
- Opus 4.6: `claude-opus-4-6`
- Sonnet 4.6: `claude-sonnet-4-6`
- Haiku 4.5: `claude-haiku-4-5-20251001`

## Model Pricing (per million tokens)
| Model | Input | Output |
|-------|-------|--------|
| Opus 4.6 | $5 | $25 |
| Sonnet 4.6 | $3 | $15 |
| Haiku 4.5 | $0.80 | $4 |

## Codebase Analysis Tools
- Repomix: https://github.com/yamadashy/repomix
- code2prompt: https://github.com/mufeedvh/code2prompt
- Aider repo map: https://aider.chat/docs/repomap.html
- RepoMapper: https://github.com/pdavis68/RepoMapper
- ast-grep: https://github.com/ast-grep/ast-grep
- tree-sitter: https://github.com/tree-sitter/tree-sitter

## MCP Servers for Code Intelligence
- Claude Context (Zilliz): https://github.com/zilliztech/claude-context
- code-index-mcp: https://github.com/johnhuang316/code-index-mcp
- mcp-server-tree-sitter: https://github.com/wrale/mcp-server-tree-sitter
- CodeGraphContext: https://github.com/CodeGraphContext/CodeGraphContext

## Skills Ecosystem
- OpenSkills: https://github.com/numman-ali/openskills
- SkillsMP marketplace: https://skillsmp.com
- awesome-agent-skills: https://github.com/VoltAgent/awesome-agent-skills
- awesome-claude-code: https://github.com/hesreallyhim/awesome-claude-code

## Research References
- Aider repo map with tree-sitter: https://aider.chat/2023/10/22/repomap.html
- JetBrains context management: https://blog.jetbrains.com/research/2025/12/efficient-context-management/
- Greptile semantic search challenges: https://www.greptile.com/blog/semantic-codebase-search
- Sourcegraph Cody lessons: https://sourcegraph.com/blog/lessons-from-building-ai-coding-assistants-context-retrieval-and-evaluation
- Context engineering for agents: https://blog.langchain.com/context-engineering-for-agents/
- Factory.ai context compression: https://factory.ai/news/compressing-context