Engineering toolkit
for AI coding agents

Give your agents persistent memory, automatic context, project management, and observability.

Open Source · MIT Licensed
June 2026
01 / 12
The Problem
Agents forget
everything
✕

No memory between sessions — agents start from zero every time

✕

No project awareness — agents hallucinate file paths and structure

✕

No observability — you don't know what they cost or where they fail

✕

Vendor lock-in — switching providers means rewriting everything

✕

No team knowledge — each developer's agent is an island

The Solution
A composable
harness

Persistent memory

Agents remember across sessions

Automatic context

Identity + project facts injected at start

Multi-provider

Claude, Gemini, Codex, OpenCode

Observable

Tokens, costs, tools, errors tracked

Team-ready

Federated brains share knowledge

02 / 12
How it works
One layer, one job
Your coding agent
Claude CodeGemini CLICodex CLIOpenCode
arrow_downward
Hooks & transport
link

dcontext

Session hooks — inject & save

route

dproxy

Universal CLI adapter & REST API

arrow_downward
Data & services
psychology

dbrain

Memory

assignment

dwork

Projects

monitoring

dops

Observability

"If two products need to sync to function, the design is wrong."

03 / 12
Product
Your distributed mind
category

Entities, facts, and memory tiers

Hot, warm, and cold tiers keep context relevant and compact.

search

Full-text search with FTS5

Semantic search across all stored knowledge in milliseconds.

hub

MCP server

Works with Claude Code, Cursor, Windsurf, and any MCP client.

share

Federation

Personal and shared team brains. Recall auto-federates.

dashboard

React dashboard

Browse entities, search memories, and manage your brain visually.

Persistent memory server with SQLite, FTS5, and a built-in React dashboard.

dns API :7878 · Dashboard :7879
04 / 12
Product
Markdown is the source of truth
description

BACKLOG.md with inline task metadata

Tasks live in Markdown files. Human-readable, git-friendly.

build

21 MCP tools including code graph

Search, trace, and analyze your codebase through natural language.

search

Full-text search across tasks and docs

FTS5-powered search over every project, task, and document.

view_kanban

Kanban dashboard with task detail

Visual board with drag-and-drop, task metadata, and Markdown editing.

code

Git-friendly, human-readable

Every change is a clean diff. Review project state in any editor.

AI-native project manager. Markdown files are the source of truth; SQLite is just an index.

dns API :7881 · Dashboard :7882
05 / 12
Product
Know what your agents cost
token

Token tracking per session

Input, output, and cache tokens broken down for every session.

attach_money

Model-aware cost estimation

Accurate pricing for every model across all supported providers.

analytics

Tool call analytics and success rates

Which tools get called, how often they fail, and where agents get stuck.

input

Multi-provider transcript ingestion

Ingest transcripts from Claude, Gemini, Codex, and OpenCode.

bar_chart

Dashboard with charts and timeseries

Visual cost trends, usage heatmaps, and per-project breakdowns.

Agent observability server with token tracking, cost estimation, and analytics dashboard.

dns API :7883 · Dashboard :7884
06 / 12
The Glue
The invisible layers
dcontext
Automatic context
login

Identity + project facts injected at session start

Your brain's knowledge is available from the first prompt.

save

Transcripts saved before compaction

Conversations preserved before the context window shrinks.

bolt

Zero config

One command: dbrain connect claude

devices

Multi-CLI support

Claude Code, Gemini CLI, Codex CLI, OpenCode.

dproxy
Multi-provider transport
swap_horiz

One CLI, one API — 4 providers

Switch between Claude, Gemini, Codex, and OpenCode with a flag.

layers

Context pipeline

Memory + workspace + templates assembled automatically.

api

REST API with SSE streaming

Full CLI parity via HTTP. Bearer token auth, configurable port.

chat

Interactive REPL

Ask single-shot or chat in a persistent REPL with history.

07 / 12
For Developers
Typed clients for everything
npm install @dtoolkit/sdk
psychology

DBrainClient

Memory operations — recall, remember, entities, facts, search, and federation.

assignment

DWorkClient

Project management — projects, tasks, docs, search, sync, and overview.

route

DProxyClient

Model invocation — prompt execution, streaming, and multi-provider routing.

monitoring

DOpsClient

Observability — sessions, costs, tool analytics, and transcript ingestion.

science

Zero-config examples: cd examples && npm start

08 / 12
5 Minutes
From zero to full harness
1

Install

Install the core packages globally from npm.

npm i -g @dtoolkit/dbrain @dtoolkit/dcontext @dtoolkit/dwork @dtoolkit/dops
2

Memory

Initialize and start your personal brain.

dbrain init && dbrain start
3

Context

Connect your brain to your AI coding CLI.

dbrain connect claude
4

Projects

Initialize and start the project manager.

dwork init && dwork start
5

Build

Open your CLI. The full harness is active.

claude # or gemini, codex, opencode
09 / 12
20 Packages
Available now + Coming soon
Available 12
core
sdk
dbrain
dcontext
dwork
dops
dproxy
adapter-claude
adapter-gemini
adapter-codex
adapter-opencode
codegraph-sdk
Coming soon 8
dcouncil
dguard
dpolicy
droute
dpair
dreplay
dstream
dforge
verified All MIT licensed, published on npm as @dtoolkit/* scoped packages.
10 / 12
Philosophy
What we believe
01

One layer, one responsibility

Each package does one thing well. Memory is memory. Projects are projects. No god objects.

02

CLI-first, dashboard as bonus

Everything works from the terminal. Dashboards are a visual convenience, not a dependency.

03

SQLite everywhere

Zero external dependencies. No Postgres, no Redis, no Docker. Just a single file on disk.

04

MCP + REST on the same port

One server, two protocols. MCP for agents, REST for everything else. No port sprawl.

05

Markdown as source of truth

Data lives in files you can read, edit, and version. The database is just an index.

06

No vendor lock-in

Four adapters, one interface. Switch providers with a flag. Your data stays with you.

11 / 12
Ready to try it?
code GitHub package_2 npm menu_book Docs
Iván Campillo · ivncmp@gmail.com
github.com/ivncmp/dtoolkit
12 / 12