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AI Infrastructure/Open Source Initiative/System Build
ai-mapOpen-Source Context Window & Token Optimization Engine

ai-mapOpen-Source Context Window & Token Optimization Engine: "An open-source token optimizer that prunes code context in long AI coding sessions."

02 / THE PROBLEM

Context Bloat & Token Waste in Autonomous Coding Loops

When AI developer tools run complex multi-turn coding sessions, re-sending full source files and verbose error stack traces rapidly fills the LLM context window, causing high API costs and degraded reasoning.

KEY PAIN POINTS BEFORE THIS EXISTED
Repetitive source file content draining token budgets on every step
Models losing attention on early instructions due to context overflow
Developers writing messy manual pruning code in their scripts
03 / THE APPROACH

Abstract Syntax Tree (AST) Outline Mapping

We built an in-memory TypeScript library that indexes source files into structural outlines, expanding only the active function blocks needed by the model.

DECISION 01

AST Structural Outlining

Replaced full source files with clean interface maps containing method stubs and type signatures.

DECISION 02

Dynamic Token Budgeting

Allocates token capacity intelligently between system instructions, active memory, and tool stubs.

DECISION 03

Zero-Dependency Local Execution

Runs entirely in-memory under 2ms with 100% local data privacy.

04 / WHAT IT DOES

Drop-in Token Budgeting for TypeScript & Node.js AI Projects

Open-source developer utility published on NPM.

01

AST Structural Code Compressor

Parses active workspace files and generates minimal type outline maps.

Interface Detail: Terminal window comparing raw 500-line source file vs 30-line compressed AST map
02

Sliding Token Budget Manager

Ensures multi-turn prompt history never exceeds model context boundaries.

Interface Detail: CLI token budget meter displaying allocated system vs tool vs memory tokens
05 / OUTCOME & IMPACT

35% Token Savings & Published NPM Package

35%
Token Savings
Average reduction in multi-turn coding sessions
<2ms
Parse Speed
In-memory tree mapping latency
NPM
Published Package
Actively used in developer agent pipelines

ai-map provided developers with a clean open-source solution to build longer, cheaper AI coding agent sessions.

Published on NPM — Available for developer installation.
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BESPOKE DEVELOPMENT

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06 / TECH STACK & INFRASTRUCTURE FOOTER
Technical Details
TypeScriptBabel AST ParserNPM RegistryJest Test SuiteTypeScriptBabel AST ParserNPM RegistryJest Test SuiteTypeScriptBabel AST ParserNPM RegistryJest Test Suite