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Claude Code
Claude Code
Level 14
The bug that lies silently
Claude Code SELF
14 level,
0 lecture
Morning starts with a phone. In the chat with Tom2036 — a fresh image, with not a single line of text, as always.
What is a test and why do you need one
Claude Code SELF
14 level,
1 lecture
Hey, so how do I prove anything at all? Well, I’ll fix it. I’ll open the game, make three in a row, and look at the scoreboard. If it shows three, it means it’s fine.
How to read a log to the root cause
Claude Code SELF
14 level,
2 lecture
Tommy really wants to tell the agent, “something is wrong with the score in the game, fix it.” But he stops himself—Alex has drilled in a discipline: the thought “something is off” is not input for a fix.
When a Green Test Lies
Claude Code SELF
14 level,
3 lecture
Tommy gives Sam a precise clue — a log, a line, a setup — and asks him to fix the cause. Sam takes it and fairly quickly reports back: the scoring bug is fixed, the test is green, everything is great.
Proving the fix honestly
Claude Code SELF
14 level,
4 lecture
The conversation, the screenshots, and one caught trap — that was just now. Tommy already has everything he needs: the spec with four separated columns, the log up to line 9, the understood green trap, and the rule of honest testing.
Additional Resources
Claude Code SELF
14 level,
5 lecture
Two level articles in one list: what a command, a log, a diff and a screenshot each confirm and how to put them into an EVIDENCE_LOG, and how to check an agent's claim about an unfamiliar project against the code and the app's behavior.
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