Launch Sniper

Watches Base for fresh Uniswap V3 launches. Reviews each one. Mostly passes. The agent builds a multi-source dossier on every new pool and decides BUY (paper) or PASS.

What this proves

The interesting case for an autonomous trading agent isn't "make money" — it's "decline 99% of the time, with a written reason, and explain it." Every meme-rug since 2024 has a recognizable shape: contract verified somewhere but mint authority not renounced, deployer with a string of dead deploys, top-10 holder concentration above 95%, no public footprint beyond DEX-tracker spam.

What the agent reads

Phase 1 — on-chain (always):

• PoolCreated event on Uniswap V3 factory (Base mainnet)
• ERC-20 metadata via direct contract reads (name, symbol, decimals, totalSupply)
• Pool slot0 (price, sqrtPriceX96, liquidity, initialized)

Phase 2 — multi-source dossier (gated by Phase 1 not being an obvious rug):

• Etherscan V2 (getsourcecode): is source verified, which compiler
• On-chain: owner() selector — renounced / active / no-owner
• Deployer history: count of contract creations attributable to the deployer EOA
• Top-10 holder concentration via Basescan token holder list
• GoPlus Security (api.gopluslabs.io/api/v1/token_security/8453): honeypot, mintability, taxes, LP lock, top-3 holder tags
• Brave Search + DeepSeek narrative: gated by basic credibility check (skips if GoPlus says honeypot/closed-source/no-record); searches for team identity, coverage, red-flag reports

Decision

Claude Haiku 4.5 evaluator with strict rules:

• GoPlus is_honeypot=YES or can_take_back_ownership=YES → automatic PASS
• Narrative red_flag=YES → automatic PASS
• Narrative presence=substantial → upgrades conviction
• Source unverified AND GoPlus closed-source → skip narrative fetch, surface as flag
• Default behavior on any incomplete dossier: PASS (safe default for a sniper)

Code map

• Contract: contracts/src/LaunchSniperFund.sol
• Phase 1 indexer: ui/src/lib/launch-sniper/indexer.ts
• Phase 2 dossier: ui/src/lib/launch-sniper/phase2.ts
• GoPlus client: ui/src/lib/launch-sniper/goplus.ts
• Brave + DeepSeek narrative: ui/src/lib/launch-sniper/{search,narrative}.ts
• Evaluator (Claude Haiku 4.5): ui/src/lib/launch-sniper/evaluator.ts
• Executor (publishes reason blob + signs tick): ui/src/lib/launch-sniper/executor.ts
• Types: ui/src/lib/launch-sniper/types.ts
• UI: ui/src/app/launch-sniper/page.tsx

Try it

demo-agents.theseus.network/launch-sniper. The cron fires every 20 minutes; the page shows the most recent decisions with the full dossier expandable.

Env vars

The Phase 2 dossier degrades gracefully — if ETHERSCAN_API_KEY or BRAVE_SEARCH_API_KEY are unset, those fields surface to the LLM as "unknown" and the agent's safe default is PASS. To get the full surface, set both — both have free tiers that comfortably cover the cron's volume.

On-chain

Ticks are written to LaunchSniperFund. Every tick — BUY or PASS — counts toward tickCount().

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Last updated: June 17, 2026.