Do we need MCPs? Reverse-engineered Slack and Linear API for Evals & RL
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HN · launched Dec 4, 2025 · 11 upvotes (top 47%) · 1 view
Niche: reverse engineering tools · 102 launches, 5 in the last 7 days ▼ -29% · Explore this niche →
Category and tags
- Horizontal
- Observability & eval
- Developer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 102 launches in reverse engineering tools →
Could you build this?
Partial Building mock environments from reverse-engineered Slack and Linear endpoints for AI RL/evals requires reverse-engineering private/internal client APIs and building accurate stateful mocking engines.
What it would actually take: Requires sniffing and reverse-engineering the private web/desktop client API protocols of Slack and Linear, capturing state transitions, and creating an in-memory mock backend that faithfully mimics rate limits, websockets, and undocumented side effects. Developing reliable RL environment harnesses (Gym/PettingZoo style) on top of these reverse-engineered APIs requires strong reverse engineering and test-fixture simulation expertise.
Discussion
4 comments analyzed.
Competitors mentioned: Gmail API, Slack API, Linear API, MCPs (Model Context Protocol)
Concerns raised: Rate limits blocking evals on 3rd party APIs, Difficulty running evals/training on integrations at scale
Competitors
Other products that read as similar to this one : 3749 launches clear the similarity bar, closest 8 shown.
Attention rank: #1756 of 3750 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 36 days after the earliest competitor.
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- rok · github · 2026-10-25 · 15 upvotes · similarity 0.55
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- RCE-POCKET-POC-for-PHP2SHELL · github · 2026-10-21 · 41 upvotes · similarity 0.55
- Smart Scan · hn · 2025-11-24 · 15 upvotes · similarity 0.54
- rea-rust · github · 2026-10-23 · 68 upvotes · similarity 0.54
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