CodeNib

<!-- SPDX-FileCopyrightText: 2025-2026 CodeNib Contributors SPDX-License-Identifier: Apache-2.0 --> <div align="center"> <img src="https://raw.githubusercontent.com/sysevol-ai/CodeNib/main/assets/codenib_logo.svg" alt="CodeNib" width="560"> <h1>A Multi-View Data System for Serving Repository Context to Coding Agents</h1> <p> Incremental compilation, explicit per-view manifests, and agent-native context serving. </p> <p> <a href="#quickstart">Quickstart</a> &nbsp;&middot;&nbsp; <a href="https://codenib.ai">Website</a> &nbsp;&middot;&nbsp; <a href="https://discord.gg/ySer6CGn4">Discord</a> &nbsp;&middot;&nbsp; <a href="https://docs.codenib.ai/">Documentation</a> &nbsp;&middot;&nbsp; <a href="https://docs.codenib.ai/mcp/">MCP</a> &nbsp;&middot;&nbsp; <a href="https://docs.codenib.ai/language_capabilities/">Languages</a> </p> <p> <a href="https://github.com/sysevol-ai/CodeNib/actions/workflows/ci.yml"><img src="https://github.com/sysevol-ai/CodeNib/actions/workflows/ci.yml/badge.svg" alt="CI"></a> <a href="https://github.com/sysevol-ai/CodeNib/blob/main/LICENSE"><img src="https://img.shields.io/badge/License-Apache_2.0-blue.svg" alt="License: Apache 2.0"></a> <a href="https://github.com/sysevol-ai/CodeNib/blob/main/pyproject.toml"><img src="https://img.shields.io/badge/Python-3.10%2B-3776AB.svg" alt="Python 3.10+"></a> <img src="https://img.shields.io/badge/Release-Developer_Preview-EA580C.svg" alt="Developer Preview"> </p> </div> CodeNib is a multi-view data system for serving repository context to coding agents. Its native runtime compiles a checkout into manifest-linked lexical, semantic, structural, and static-navigation views, incrementally maintains supported transitions, and serves bounded source evidence through MCP, LSP-shaped providers, Python, and HTTP APIs. The Wiki, Ask view, and Dependency Map are inspection clients of that same runtime, not the system boundary. The core implementation lives in CodeNib; optional model endpoints and language servers are providers rather than a host agent or code-Wiki framework. ## System Architecture | Layer | Responsibility | |---|---| | Incremental compiler | Chunk source and materialize BM25, dense, graph, and navigation views; reuse or repair supported artifacts and rebuild when an update cannot be admitted | | View manifest | Record repository identity, source fingerprint, builder profile, capabilities, status, and artifact location independently for each view | | Context serving | Execute lexical, semantic, hybrid, reranked, and structural query plans while preserving repository-relative source locations | | Agent runtime | Expose capability-aware MCP and LSP-shaped tools, assemble bounded evidence, and return citations that agents and humans can inspect | ```text repository change -> materialize or repair affected views -> publish a capability-bearing manifest -> plan repository queries -> deliver bounded, source-linked context ``` On a later commit, CodeNib can reuse unchanged vector content and patch supported graph transitions at file or symbol granularity. Unsupported, inconsistent, or unverified transitions fall back to a fresh build instead of publishing a partially updated view. ## Quickstart Requires Python 3.10+ and Git. ```bash pip install codenib codenib wiki /path/to/repository ``` CodeNib detects the repository languages, builds a reusable index under `~/.codenib/repositories`, launches the local Wiki, and opens [http://localhost:3000](http://localhost:3000). The wheel includes the production Wiki frontend, so normal use does not require Node.js or npm and the target repository stays untouched. This command exercises the same compiler and serving runtime used by agents. Set `CODENIB_HOME` to relocate state. Check the environment or index without opening the Wiki: ```bash codenib doctor --require core --require wiki codenib index /path/to/repository ``` See the [Quickstart](https://docs.codenib.ai/quickstart/) for ports, advanced indexing, and troubleshooting. <p align="center"> <img src="https://raw.githubusercontent.com/sysevol-ai/CodeNib/main/assets/codenib_wiki.png" alt="CodeNib Wiki showing the source-linked reverse proxy guide for Caddy" width="100%"> </p> ## Serve An Agent Install the MCP extra, build once, and serve the same repository manifest over stdio: ```bash pip install "codenib[mcp]" codenib index /path/to/repository codenib mcp /path/to/repository ``` The MCP server advertises its full tool set and uses the compiled manifest to decide which calls have a fresh backing view. An agent can therefore reuse available repository work instead of rebuilding context through unbounded `grep` and `read` loops, while unavailable searches fail explicitly. BM25, semantic, regex, Zoekt, dependency, and static-navigation results retain source locations for follow-up reads and citations. See [MCP Server](https://docs.codenib.ai/mcp/) for client configuration and tool contracts. ## What CodeNib Provides | Surface | Purpose | |---|---| | Incremental compiler | Build independently managed views, reuse unchanged content, repair supported transitions, and conservatively rebuild outside those boundaries | | Agent context runtime | Plan capability-aware retrieval and navigation, then assemble bounded source-linked evidence | | Retrieval | BM25, dense-vector, regex/trigram, Zoekt, fusion, and reranking paths | | Structural context | SCIP/LSP-backed symbol graphs with source locations and typed edges | | MCP and LSP-shaped tools | Serve one manifest to coding agents without tying the runtime to one agent framework | | Local inspection | Audit the same context through Wiki pages, Ask answers, citations, and the Dependency Map | | Evaluation harness | Measure retrieval, navigation, incremental maintenance, and context policies on the same artifacts | Language support varies by surface. The generated [capability matrix](https://docs.codenib.ai/language_capabilities/) records chunking, graph, incremental, and C++ decoder support. ## Documentation - [Quickstart](https://docs.codenib.ai/quickstart/) - [MCP Server](https://docs.codenib.ai/mcp/) - [Web UI](https://docs.codenib.ai/web_demo/) - [Language Capabilities](https://docs.codenib.ai/language_capabilities/) - [Concepts and development guides](https://docs.codenib.ai/) Build the documentation site locally with: ```bash pip install "codenib[dev]" mkdocs serve ``` ## Development ```bash git clone https://github.com/sysevol-ai/CodeNib.git cd CodeNib make dev make test ``` The test suite is split into unit, integration, serial integration, core, graph-consumer, and slow tiers. See [CI/CD](https://docs.codenib.ai/ci_cd/) before running the credential- or toolchain-dependent tiers. ## Status CodeNib `0.1.0` is a developer preview. The CLI and manifest format are usable, but public interfaces may still change before a stable release. Historical research artifacts retain their published dataset identifiers; the maintained package, import namespace, commands, and repository use `CodeNib`. See [Naming](https://docs.codenib.ai/branding/). ## Citation If you use CodeNib in your research, please cite our [arXiv paper](https://arxiv.org/abs/2607.25431): ```bibtex @misc{yu2026codenibmultiviewdataserving, title={CodeNib: A Multi-View Data System for Serving Repository Context to Coding Agents}, author={Zhongming Yu and Hengjia Yu and Boqin Yuan and Shuting Zhao and Yizhao Chen and Aryan Dokania and Mihir Jagtap and Jiayu Chang and Yitong Ma and Yash Jayswal and Wentao Ni and Hejia Zhang and Zhaoling Chen and Gangda Deng and Jishen Zhao}, year={2026}, eprint={2607.25431}, archivePrefix={arXiv}, primaryClass={cs.SE}, url={https://arxiv.org/abs/2607.25431}, } ``` ## Project [Website](https://codenib.ai) &nbsp;&middot;&nbsp; [Changelog](https://github.com/sysevol-ai/CodeNib/blob/main/CHANGELOG.md) &nbsp;&middot;&nbsp; [Contributing](https://github.com/sysevol-ai/CodeNib/blob/main/CONTRIBUTING.md) ## License CodeNib is licensed under the [Apache License, Version 2.0](https://github.com/sysevol-ai/CodeNib/blob/main/LICENSE).