An agentic architecture, worked through
A first-line support agent for a fictional online retailer, from requirements to a recorded release, with a person's approval at every step.
The target architecture
The client, its people and its town are fictional. This is a sample, not a case study.
- 01 · requirements
Requirements: proposed customer support assistant
Bizet & Brahms Home Goods proposes a first-line assistant for website chat with six steps: disclose, verify, answer, act, flag, log.
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 02 · risk classification
AI system inventory and preliminary risk classification
Two systems are in the evidence: the proposed support assistant (AI-001, not built) and the help-desk "suggested replies" feature (AI-002, live since spring 2026).
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 03 · architecture
Target architecture: proposed customer support assistant
Touchstone's proposed target design for the assistant. Nothing is built. It turns the requirements into components; it adds no new requirement.
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 04 · adr
ADR-001: Approved policy versions, human gates, tool allowlist and fixed disclosure for the support assistant
Answers come only from approved policy versions. Refunds above the limit are held for a team lead. Five tools behind a gateway, and a fixed disclosure text.
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 05 · findings
Proposed customer support assistant: findings and roadmap
This review found 14 findings: 6 high, 7 medium, 1 low. The assistant is not built yet, so no harm has happened. The findings rate the plan as it stands today.
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 06 · sign off
Sign-off record: design phase of the proposed customer support assistant
This sign-off approves the design, not the launch. Nothing has been built. The signers, their approvals and the signatures are part of a practice scenario.
Approved by: Joshua Garza, Touchstone Data's owner, November 2, 2026, after a separate reviewer agent's check
- 07 · test results
Test results: held-out evaluation of the retail support assistant prototype
All six targets were met. No case missed any target. The score is one run, and the report says what a perfect score on one run shows and what it does not.
Approved by: Joshua Garza, Touchstone Data's owner, November 3, 2026, after a separate reviewer agent's check
- 08 · release
Release record: the retail support assistant prototype deployed and invoked on AWS
What was deployed for the demo 4 release session, when, by whom, what the three invoked cases returned, what it cost and how the stack was taken down.
Approved by: Joshua Garza, Touchstone Data's owner, November 4, 2026, after a separate reviewer agent's check
The client, its people and its town are fictional. This is a sample, not a case study.
The agent at work: five scenarios
Five held-out cases, each run once against the prototype and recorded. Gate decisions are simulated from the case file.
An agentic architecture, worked through
Terminal recording: Refund under the limit.
Recorded from a real run. Nothing runs when you press play. Pauses over 2 s are shortened.
Recorded (UTC). See the test results
Full transcript: An agentic architecture, worked through: Refund under the limit
Plain text of everything the recording prints, with colors removed.
The release on AWS
The prototype deployed to a sandbox AWS account, invoked on three cases, and taken down, in one recorded session.
Recorded from a real run. Nothing runs when you press play. Pauses over 2 s are shortened.
Recorded (UTC). See the test results
Full transcript: An agentic architecture, worked through: Plan
Plain text of everything the recording prints, with colors removed.
What you are seeing
- The client, its people and its town are fictional. This is a sample, not a case study.
- Eight artifacts from a practice engagement, from requirements to release. A separate reviewer agent checked each one, and the owner approved it before it went on this page.
- The recordings are real runs of Touchstone Data's prototype on fictional orders, customers and policies, played back as recorded. Nothing on this page executes, and no model runs when you press play.
- The test results report one held-out run, and say what that run does not show.
- Account numbers and other account identifiers are replaced with placeholders. The customer email in the recordings is a fictional test address.
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