v0.10 · APACHE-2.0 · LOCAL-FIRST · NO API KEY · NO TELEMETRY
archex
.
Local code context for agents.
Turns a repository into a ranked, token-budgeted context bundle —
symbols, dependencies, graph context, provenance. It returns
context, not an answer.
THE PIPELINE repository → context bundle
01
Parse
tree-sitter
25 languages
9 full · 15 chunk
02
Index
BM25F (lexical)
+ local vectors
+ SPLADE
03
Retrieve
RRF fusion
+ rerank
+ graph expansion
04
Assemble
token-budgeted
bundle, deduped,
dependency-closed
MEASURED · 19-TASK HEAD-TO-HEAD · APPLE M1 PRO
archex
competition
1.0
Recall
0.95
0.32
F1
0.66
0.31
Token eff.
0.76
0.48
COMPLETION-PENALTY TOKENS
922
vs
11,188
tokens for the agent to finish · ≈12× fewer
COLD START
0 ms
vs
4,721 ms
no daemon warm-up required
The real baseline isn’t another index — it’s grep.
grep gets recall
1.00
and token-efficiency
0.00
— it dumps everything into the prompt.
archex hands back only the relevant slice, at a fraction of the tokens.
SHIP IT ANYWHERE · ONE DETERMINISTIC CORE
CLI · 21 commands
MCP · 14 tools
Python API
Docker slim / full
Claude Code skill
LangChain retriever
LlamaIndex retriever
scout: map → fetch
graph query + analyze
$
uv tool install archex
github.com/
Mathews-Tom/archex
Deterministic retrieval · runs fully local · same query = same bundle, every time.