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PROJECT / Agent Systems

Accretion

Observable, deterministic meta-harness for local AI coding agents — supervises Codex and Claude Code through one control plane with static strategy selection, verifier-gated bounded loops, isolated Git worktrees, a durable event trace and the ACR-ARCH selector benchmark.

Accretion project illustration
EXPLORE THE PROJECT

The work, in context.

Read the connected notes for the decisions, experiments and questions behind this project.

BEHIND THE WORK

Decisions, experiments & field notes.

01

Embodied AI vs Cross-Embodiment AI: Where the Line Actually Sits

Embodied AI is the field: intelligence closing a perception–action loop against physics. Cross-embodiment (X-embodiment) is a scaling bet inside it — and the RT-X numbers say it pays off asymmetrically: 27.3%→75.8% at 55B params, but worse-than-solo at 35M. Diversity beats volume, human video is the cheapest body, and the evaluation harness matters at every scale.

Embodied AIVLARobotics
02

AI Proposes, Safety Decides

RoboLLM's four principles in practice: one ROS 2 bridge for MCP and dashboard, a physical-arm chain where no model ever touches PWM, gesture pick-and-place and fist-triggered wall welding with collision-verified standoffs — and why it is the same shape as a meta-harness.

RoboticsSafetyAI Agents
03

Direct Joint Copy Beat QP IK — and the Habit That Caught It

Full-body Talos mirror in RoboLLM: pink QP differential IK lost to direct joint copy in an A/B — wrist error 0→5.31 mm, 31–58 ms ticks vs a 20 ms budget, a crash on partial visibility, and an orientation 'win' with no ground truth. Why Pose-only input caps fidelity and when QP actually pays.

RoboticsROS 2Teleoperation
THE SAME ORBIT

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AI-assisted money management — planning calendar, Gantt roadmaps, Stripe billing, and generated PDF reports.

FastAPINext.jsStripePostgreSQL
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ReCall

On-call incident copilot that drafts timelines and postmortems while responders focus on the fix.

PythonCockroachDBFastAPI
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AN INTERESTING QUESTION IS A GOOD START

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Concept illustration of a small antenna sending a golden signal across a violet night sky.