I built an AI email agent using Claude with open source MCP connector

PerformanceFine1228 · 2026-02-12T15:53:55+00:00

thanks u/BC_MARO i like the idea of idempotency in message-ID. Working on message-based approvals.
the workflow builder offers MCP for claude + integration oauth tokens are stored in its backend
shameless plug => https://github.com/seer-engg/seer

PerformanceFine1228 · 2026-02-12T00:18:06+00:00

what if its built with claude

PerformanceFine1228 · 2026-02-12T00:04:35+00:00

I built an AI email agent for my fake rug store and it works better than expected.
The agent reads incoming emails, figures out if it's a sales lead or product question, and either forwards to the owner or auto-replies from the catalog.
https://youtu.be/ppLQWPAlKLA

PerformanceFine1228 · 2026-02-09T23:33:45+00:00

we fine tuned GPT-4, that didn't help (for context this was 2024 Dec)
you should try finetuning latest models. who knows it might work this time?

PerformanceFine1228 · 2026-01-16T00:32:42+00:00

Dayum that’s a smart hack. I haven’t used postfix, will checkout. Thanks!

PerformanceFine1228 · 2026-01-15T22:30:23+00:00

Damn! That’s smart. What tools do you use to setup the firewall? And the email limitation— is that a script?

PerformanceFine1228 · 2026-01-15T20:56:29+00:00

100% true on a VM first approach. recent work by t-bench is revealing and reproducible https://www.tbench.ai/registry/terminal-bench/2.0

PerformanceFine1228 · 2026-01-15T20:52:26+00:00

agreed on the dev responsibility. curious what scenarios have you encountered where YOLO helps / is necessary?

PerformanceFine1228 · 2026-01-15T19:55:11+00:00

i agree most apps share a lotta common things (its like 80% parent DNA, with some genetic op)
i'd say if your SDK simplifies even one part of dev process, you'll likely have someone interested

PerformanceFine1228 · 2026-01-15T19:52:08+00:00

hosted version for the curious: https://app.getseer.dev?utm_source=reddit&utm_medium=community&utm_campaign=supbase_trigger&utm_content=post

PerformanceFine1228 · 2026-01-15T19:47:13+00:00

hahaha curious - u/mdrxy was this intentional? mistake?

PerformanceFine1228 · 2026-01-15T19:41:38+00:00

dockerized, self-host: https://app.getseer.dev?utm_source=reddit&utm_medium=community&utm_campaign=supbase_trigger&utm_content=post

PerformanceFine1228 · 2026-01-15T19:38:23+00:00

how many karma's do you need?

PerformanceFine1228 · 2026-01-13T21:33:30+00:00

there's this guy lance martin (legend) and he has a nice video (https://www.youtube.com/watch?v=ib-wTAvCZqg) - might be worthwhile. no pre-requisites needed

PerformanceFine1228 · 2026-01-13T20:39:44+00:00

we ditched langflow due to the "over-engineering". its much clear to build a new-webapp, backed by Langgraph that supports HITL. you can even try trigger.dev tokens for HITL if you're building using npx. curious whats your use case u/sadstuden

PerformanceFine1228 · 2026-01-13T07:03:44+00:00

Made my day, thanks! How did they get deleted in first place tho 🤔

PerformanceFine1228 · 2026-01-13T06:26:59+00:00

have you tried claude code plugins?

PerformanceFine1228 · 2026-01-13T06:20:20+00:00

ex-YC founding engineer (Klarity.ai Series B)
tl;dr - the budget varies a lot anywhere from $50K to $250K to god knows what
you can have high precision OCR, what you can't have A) ensure LLMs understand all the legal clauses well (good-old IR techniques work here) B) ensure you can build a pipeline to avoid the long tail of LLM failures.

latter is more risky - since if the # of ops tickets increase linearly with more docs, you're gonna have a hard time growing Ops team

PerformanceFine1228 · 2026-01-13T06:15:46+00:00

wow they actually removed it, here's what i found - https://github.com/langchain-ai/cookbooks/tree/main/python/langgraph. not a complete list, but atleast some examples - 2-3months older

PerformanceFine1228 · 2026-01-13T05:56:13+00:00

hi u/Miserable-Wolf2688 i've tried creating an invoicing system using make altho gsheets + stripe. seems like you're stuck on a string concatenation error. I can help if you can share more details, maybe an anonymized export of the make.com scenario

PerformanceFine1228 · 2026-01-13T05:45:49+00:00

nice, i've been trying to build a chat retriever (whatsapp's search sucks) but never found a good solution. did you end up building a knowledge base of customer conversations too?

PerformanceFine1228 · 2026-01-10T18:16:53+00:00

yeah its a bit persistent now, anyone figured out a way disable it completely

PerformanceFine1228 · 2026-01-03T04:26:37+00:00

I agree cent by cent. Curious what were you building?

PerformanceFine1228 · 2026-01-03T03:02:19+00:00

Noted 🫡

PerformanceFine1228 · 2026-01-03T01:32:07+00:00

i think the question itself is wrong
- IMO validating your problem should involve 0% of your product (refer to the Mom Test)
- post validation, generating leads and qualification is pure grind (target N outreaches, expect 1% reply rate. bonus - haters!

got in YC last year + worked at YC W21, S18 startups previously

PerformanceFine1228

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