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Finley Sun

Software engineer by day, open source contributor by night.

Location Beijing, China Joined Joined on 
Reject Agent Patches That Weaken the Oracle

Reject Agent Patches That Weaken the Oracle

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7 min read
Don't Merge Agent Patches That Invent I/O

Don't Merge Agent Patches That Invent I/O

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6 min read
Agent Patches Pass by Sharing Fixture State

Agent Patches Pass by Sharing Fixture State

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7 min read
Pin the Clock Before You Merge an Agent Patch

Pin the Clock Before You Merge an Agent Patch

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5 min read
Build for the 429: An Architecture for Unreliable Free LLM Tiers

Build for the 429: An Architecture for Unreliable Free LLM Tiers

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4 min read
Property Checks and a Flake Freeze for Agent Patches

Property Checks and a Flake Freeze for Agent Patches

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6 min read
Mutations Catch What Your Agent Patch Misses

Mutations Catch What Your Agent Patch Misses

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3 min read
Catch Silent Behavior Drift in Agent Patches with Golden Snapshots

Catch Silent Behavior Drift in Agent Patches with Golden Snapshots

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4 min read
Quarantine Agent Patches on a Free Ephemeral Server

Quarantine Agent Patches on a Free Ephemeral Server

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4 min read
Fuzz the Patch, Not the Promise: A Hypothesis Harness for Agent-Generated Code

Fuzz the Patch, Not the Promise: A Hypothesis Harness for Agent-Generated Code

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3 min read
A Zero-Token Triage for Agent-Patch Failures

A Zero-Token Triage for Agent-Patch Failures

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4 min read
A Token-Efficient Gate for Agent Patches

A Token-Efficient Gate for Agent Patches

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4 min read
A Testing Strategy for Agent Patches: Property Checks, Fixtures, and a Flaky Freeze

A Testing Strategy for Agent Patches: Property Checks, Fixtures, and a Flaky Freeze

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4 min read
A Nightly Model-Regression Harness on Free Models and a Free Server

A Nightly Model-Regression Harness on Free Models and a Free Server

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4 min read
A Response Cache for Token-Limited LLM APIs (Before You Burn the Free Grant)

A Response Cache for Token-Limited LLM APIs (Before You Burn the Free Grant)

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4 min read
A Disposable Evaluation Loop for Any Model Release Before You Trust It in CI

A Disposable Evaluation Loop for Any Model Release Before You Trust It in CI

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4 min read
A Reusable Smoke-Test Harness for Newly Released Open Models (Before You Bet a Project on One)

A Reusable Smoke-Test Harness for Newly Released Open Models (Before You Bet a Project on One)

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6 min read
A Local AI Review Pass for Python Diffs Before You Open the PR

A Local AI Review Pass for Python Diffs Before You Open the PR

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6 min read
A Pre-Push Gate for Python Diffs That Fails Loud, Not Often

A Pre-Push Gate for Python Diffs That Fails Loud, Not Often

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5 min read
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