facebookincubator/Glean
System for collecting, deriving and working with facts about source code. observed · 2026-08-28
Health v2 · maintenance only
77/100
- Activity 99
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2200
- days_rel: n/a
- days_push: 8
- n_releases_24m: 0
Adoption not part of the score
1391 stars · 93 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Glean is a system for collecting, storing, and querying facts about source code, such as symbol definitions, references, call hierarchies, and type relationships. It stores typed, schema-defined facts in a RocksDB-backed database and provides a Datalog-style query language called Angle for precise semantic code analysis at monorepo scale.
Use cases
- find all callers of a function across a monorepo
- jump to definition and find references for code navigation tools
- build refactoring and API migration tools that locate every callsite or implementer
- power IDE features and coding agents with accurate semantic code queries
- detect dead code or write custom linters via code structure queries
- index large codebases in C++, Python, Java, Go, Rust, and TypeScript
When to choose
- you need precise, semantic answers about code structure rather than text-based grep matching
- you are analyzing very large codebases or monorepos with billions of facts
- you want cross-file and cross-language code intelligence for IDEs, bots, or LLM coding agents
- you need a queryable database of code facts with extensible schemas
When to avoid
- you only need simple text-based code search without semantic understanding
- your language has no indexer or LSIF/SCIP support available
- you want a lightweight tool without running a storage backend and query engine
- you need a turnkey hosted solution rather than a self-managed system
Facets
service · maturity active
search-engine parser database developer-tools developer-tools parsers programming-languages apis cli code-indexing code-search static-analysis datalog monorepo cross-references angle-query-language code-navigation linux macos docker
3 sources
- readme: https://github.com/facebookincubator/Glean · fetched 2026-08-28 · f70dc2fc19f4
- homepage: https://glean.software/ · fetched 2026-08-29 · bf0ab1d51cdc
- site_page: https://glean.software/docs/introduction · fetched 2026-08-29 · 7e888bdbbd4c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| facebookincubator/Glean | main | 77 |
For agents
markdown · JSON · MCP: product_card(name="facebookincubator/Glean")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem