Demos / Case study Ref. D-00 Rev. 2026.10.18
Case study · Template

Project name,
one-line promise.

[Who it is for] [Stack in three words]
§ 01

Outcome.

Live numbers from the run log

[One sentence on the business result.] For example: every website lead gets a personal reply in under a minute, day or night.

Median reply
–
last 7 days
Runs · 24 h
–
this demo
Success · 7 d
–
finished runs

Latest runs

Connecting…
  1. Loading the run log…
§ 02

The problem.

Who has it · what it costs

[Who has this problem, in one or two sentences. Name the person, not the industry.]

[What it costs them today: lost leads, hours, missed payments. Use one real number if there is one.]

[What they do now instead, and why that breaks.]

§ 03

Watch it. Try it.

90 seconds · then run it yourself
Fig. 1 · Demo video

Video coming with the demo

[One line: what the video shows, result first.]
Try it live · opens with the demo

Try it with your own email. You get the real messages. Your details are deleted after 7 days.

§ 04

How it works.

Trigger → steps → outputs
Fig. 2 · Flow
Flow: a form submit is validated, scored by AI, saved, and answered by email with an owner alert. TRIGGERForm submit STEP 1Validate STEP 2AI score STEP 3Save to D1 OUTPUTEmail + alert Flow: a form submit is validated, scored by AI, saved, and answered by email with an owner alert. TRIGGERForm submit STEP 1Validate STEP 2AI score STEP 3Save to D1 OUTPUTEmail + alert
[Replace the node labels with the demo's real steps. Keep labels to two or three words.]

[Two or three sentences walking through the flow. Name the trigger, the decision the AI makes, and what the customer gets.]

§ 05

Reliability.

What can fail · what happens then
Failure modes and how each is handled
If this failsWhat happens
The AI gives a bad answerThe answer is checked against a schema. One retry, then a second model takes over. The run log shows which model answered.
Gmail or Calendar is downThe step goes to the dead-letter list and retries after 5 min, 30 min and 2 h. Every failure sends me a Telegram alert.
Someone floods the formTurnstile blocks bots. Each visitor gets 3 runs a day. Past the daily email cap, the email shows on the page instead.
Visitor data piles upA nightly job deletes visitor details and demo calendar events after 7 days.
[A failure specific to this demo][How it is handled.]
§ 06

Build it on your platform.

Same flow · four tools · import files included
[Screenshot of the n8n workflow, with alt text]

[What the n8n version does the same, and what differs.]

Import file: templates/n8n.json in the repo.

§ 07

Tech and decisions.

Why this, not that
Runs onCloudflare Workers + D1
AIGemini Flash, Workers AI fallback
MessagesGmail API
  1. Workers, not hosted n8n. Recruiters click at any hour. Free n8n hosting can sleep; a Worker answers in milliseconds.
  2. D1, not Postgres. It never pauses on the free tier, so the demo works on a quiet Sunday too.
  3. [Decision.] [Why, in one sentence.]