Alexa+ track · Build, Ship, Shape

The assistant that takes back what it just said.

Unsay · an MCP server for Alexa+

Ray Dunn · post-op day 5live

Weight
bearing · v2Partial, about half your weight.MA

Weight
bearing · v3Full weight-bearing as tolerated.just now · Sarah OkaforSO

~~“You can put about half your weight on it—”~~“Wait — don’t do that.”

Unsay · v0.1.0Sheet 01 / 10

Post-op day 5 · 16:14

“Can I put weight on it yet?”

Ray Dunn, 68 · after a hip replacement

Alexa reads him version 2. His physio is writing version 3.

Unsay · v0.1.0Sheet 02 / 10

§1 · The problem

The plan changed mid-answer.

Once Ray hears “half your weight”, he acts on it.

care://ray/weight_bearinghistory

v2 · 2 daysPartial weight-bearing, about half your body weight.MA

v3 · nowFull weight-bearing as tolerated.Sarah Okafor, physioSO

Unsay · v0.1.0Sheet 03 / 10

§2 · The moment

It stops mid-sentence.

Ray's Echo Show: the old instruction struck through in amber, the new one beneath, changed 1 second ago by Sarah Okafor, physio

1struck, never erased 2v3 stands 3who · how long ago

~~“You can put about half your weight on it—”~~“Wait — don’t do that. Full weight-bearing as tolerated.”

Unsay · v0.1.0Sheet 04 / 10

§3 · How it works

One signed write. One MCP frame.

Unsay · v0.1.0Sheet 05 / 10

§4 · Never spoken

Some of the chart is about Ray.

care://ray/…

“Full weight-bearing as tolerated.”

−32002

care-internal://ray/risk

“Fall risk: HIGH. Lives alone.”

Take it slowly the first time, and have someone nearby.← shaped by the risk note, never spoken

Unsay · v0.1.0Sheet 06 / 10

§5 · Deployed · measured

200/200inside the sentence

“You can put about half your weight on it—”

p50 415 ms

p95 461 ms

worst 592 ms

0 msone sentence ≈ 3,400 ms (assumed)

Unsay · v0.1.0 · docs/proof/bench.remote.txtSheet 07 / 10

§6 · Built for Alexa+

MCP is the product.

$ npm run e2e protocolVersion 2025-11-25 resources subscribe · listChanged notifications resources/updated

ui://unsay/echo

An MCP Apps card

skill/SKILL.md

An Agent Skill

whats_changed

A fallback that retracts

Last-Event-ID

3 missed, 3 replayed

Unsay · v0.1.0Sheet 08 / 10

§7 · Honest by design

What isn’t done.

Whether Alexa+ itself subscribes has not been answered.

initialize.json · not-run

The KMS provider has never run against a live key.

README

Unsay does not generate clinical guidance.

every screen

Unsay · v0.1.0Sheet 09 / 10

§8 · Try it

Change Ray’s plan yourself.

Liveunsay.edycu.dev

Serverapi.unsay.edycu.dev

Codegithub.com/edycutjong/unsay

Some sentences deserve to be unsaid.

unsay.edycu.dev

Unsay · v0.1.0 · MITSheet 10 / 10