Context SNR(Signal-to-Noise Ratio)

How much of your agent's context window is actually working on the current task?

01 Understand context window

How Agents Work: A Deep Dive Into the Context Window

Agent LoopContext windowLive whiteboard

How dirty is your context window?

1.54% useful99.7% are input

02 Measurement

Run the Numbers: How Many of the Tokens Your Agent Burns Are Pure Waste

Local scanContext noiseMeasure your SNR

03 Fix the problem, raise the signal

A letter from an Echo user: how I turned disposable AI work sessions into compounding intelligence

Echo MCPCompound memoryCarry over

Echo Mem MCP 101: Echo is very easy to use

Agent DoctorWarm contextFree memory box

Save and Search Memory with Echo

Save everythingFetch anythingLow noise

Stop re-explaining your project to your AI every session

Warm startRepo mapFresh session

04 Proof and payoff

What raising your Context SNR buys you

5× fewer tokens30s startsLess drift

Evidence-First Memory: EchoMem Reaches 95.8% on LongMemEval

95.8%Evidence recallKnows unknowns