Product Rebuild Gate — Score, Fix, Iterate
Iterative product-improvement gate: score a draft against success criteria, get concrete fixes, then REBUILD or ADVANCE. Built for Product Loop teams. Draft/recommend only; never publishes.
Free
Works with the AI tools you already use
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Grok Bot+18 agentsProduct Rebuild Gate — Score, Fix, Iterate
Example session with this skill installed
Critique this Python function for a local cache. Criteria:
- Thread safety.
- Memory efficiency.
- O(1) lookup. Code:
cache = {}; def get(k): return cache.get(k); def set(k, v): cache[k] = v
- Read your context and instructions
- Compiled the product rebuild gate
HARSH CRITIQUE — DRAFT
Product: Local Cache Function
Round: 1
SCORES
- Thread safety — 1/10 — The global dictionary is not protected by locks, leading to race conditions in multi-threaded environments.
- Memory efficiency — 2/10 — No TTL or eviction policy (LRU) is implemented; the dictionary will grow indefinitely until OOM.
- O(1) lookup — 9/10 — Uses native dict hashing which provides average O(1) time complexity.
OVERALL: 4/10 (Formula: [1+2+9]/3)
ISSUES
BLOCKER: Lack of thread synchronization. Fix: Implement threading.Lock around set and get operations.
BLOCKER: No memory bounds. Fix: Implement a maximum size and use collections.OrderedDict to pop the oldest item when the limit is reached.
MAJOR: Global state pollution. Fix: Encapsulate the cache in a class instance rather than a global variable.
WHAT WORKS (max 3)
- Lookup speed because it utilizes Python's optimized dictionary implementation.
RECOMMENDATION: REBUILD
HANDOFF
Return to Builder. The current implementation is unsafe for production use due to lack of concurrency controls and memory management.
STATUS: DRAFT ONLY — not live
Connects securely to your tools. The creator never sees your data.
About this skill
Scores any digital-product draft against clear success criteria. Every issue gets a concrete fix ranked BLOCKER / MAJOR / MINOR. Recommends REBUILD or ADVANCE TO TESTER. Built for Product Loop teams (Researcher → Builder → Critic → Tester). Draft and recommend only — never publishes or edits live shops.
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