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A single system that runs the client lifecycle for an agency: onboarding intake, workspace setup, automated campaign reporting with human review, instant lead delivery to clients, and one live internal view of who owns what this week.
Solution blueprint: a system Callimachus Forge can architect for your operation. Not a case study, and not a claim of past deployment.
At a glance
Stack candidates
n8n · GoHighLevel · Ad platform APIs (Google, Meta) · Typeform · Airtable · Slack · Postgres · Gmail
System run
A simulated run of the exact steps documented on this page, from first trigger to final handoff. Nothing here is live client activity.
Simulation · Loops
The problem
Agencies win a client, then lose momentum in the handoff. Onboarding runs on memory and email threads. Reporting eats the start of every month as staff copy numbers from ad platforms into decks. Leads generated for clients sit in form inboxes until someone forwards them, and clients judge the agency on that delay. Internally, nobody has one view of which accounts are on track, so status lives in Slack scroll and gut feel. The work gets done, but every account manager reinvents the process, and delivery quality depends on who happens to be running the account.
Designed for a small to mid-sized agency running paid media, SEO, or lead generation retainers across a roster of clients. The typical stack is a CRM or GoHighLevel for pipeline, ad platforms for delivery, spreadsheets and decks for reporting, and Slack and email for everything else. Account managers own the relationship, specialists run campaigns, and the founder still reviews most client-facing material. The blueprint assumes clients expect a regular report, fast lead delivery, and a clear onboarding experience, and that the agency wants those handled by a system instead of by heroics.
The manual process
The automation opportunity
Most of the delivery lifecycle is predictable and repeats for every client, which makes it automatable. The moment a deal closes, the system can start onboarding on its own: send the welcome email, collect the intake form, chase missing items, and set up the internal workspace. Campaign numbers can be gathered automatically and turned into a readable draft report that a person approves before it goes out. New leads can reach the client right away instead of whenever someone checks an inbox. The team keeps the judgment and the client relationships. The system keeps the schedule.
Architecture
Every step is typed: triggers, AI decision points, business logic, actions, data, and the human checkpoints that keep judgment where it belongs.
AI components
Human checkpoints
A deal moving to Closed Won in GoHighLevel (or a Stripe payment confirmation) fires a webhook into n8n carrying the client name, service package, and contacts. This one event starts the entire onboarding sequence.
n8n sends a templated welcome email from the agency's Gmail with a Typeform intake form and a Calendly kickoff booking link. The send is logged against the client record so nothing depends on someone remembering.
When the form returns, n8n validates required items: ad account access, brand assets, tracking access, goals. Missing items trigger scheduled reminders, and stalled onboarding is flagged to the account manager.
The system creates the client's Airtable project record, a dedicated Slack channel, and a task checklist generated from a template matched to the service package. Every client starts with the same structure.
A language model turns the intake answers and package scope into a draft campaign brief and initial plan, pulling the agency's own playbooks and past briefs from a vector database so output matches house standards.
The account manager reviews the draft brief and plan, edits freely, and approves. Nothing generated by the system reaches the client without this sign-off.
A scheduled n8n job pulls spend and performance data from the ad platform APIs, and lead and call activity from GoHighLevel, into Postgres each night. Reporting reads from one clean store instead of five dashboards.
When a campaign captures a lead that meets the client's agreed criteria, n8n pushes it immediately to the client's CRM or a shared Google Sheet and alerts the client by SMS or email. Every handoff is logged.
On the reporting schedule, a language model drafts each client's report from the Postgres data only: what ran, what changed, notable movement, and recommended next steps, written in plain language for the client.
The account manager reviews the draft, corrects framing, and adds context the data cannot know. The approval action itself releases delivery, so no report ships unread.
The approved report goes to the client by email, a digest posts to the internal Slack channel, and next-cycle tasks are written to Airtable. Leadership sees one board of account status instead of asking around.
Engineering notes
Benefits are qualitative by design. We do not publish numbers we cannot verify.
The free audit maps your actual tools and process against this architecture, and tells you honestly what is worth building.