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aicoding-guide

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This week in Claude Code, Codex and Gemini CLI (week of September 20, 2026)

This week in Claude Code, Codex and Gemini CLI (week of September 20, 2026)

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6 min read
Stop Claude Code reading your .env with a Read deny rule

Stop Claude Code reading your .env with a Read deny rule

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4 min read
When bypassPermissions is safe to use in Claude Code, and when it isn't

When bypassPermissions is safe to use in Claude Code, and when it isn't

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4 min read
The JSON your Claude Code hooks receive on stdin: common and per-event fields

The JSON your Claude Code hooks receive on stdin: common and per-event fields

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4 min read
Every value you can put in a Claude Code hook matcher, by event

Every value you can put in a Claude Code hook matcher, by event

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4 min read
How long should CLAUDE.md be? The 200-line target and what it costs you

How long should CLAUDE.md be? The 200-line target and what it costs you

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5 min read
How to change reasoning effort in Codex CLI: model_reasoning_effort values and one-off overrides

How to change reasoning effort in Codex CLI: model_reasoning_effort values and one-off overrides

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3 min read
This week in Claude Code, Codex and Gemini CLI (week of September 13, 2026)

This week in Claude Code, Codex and Gemini CLI (week of September 13, 2026)

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5 min read
Is your code used to train Anthropic's models? Claude Code data usage by plan

Is your code used to train Anthropic's models? Claude Code data usage by plan

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4 min read
Does # add to CLAUDE.md in Claude Code? What the current docs say

Does # add to CLAUDE.md in Claude Code? What the current docs say

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4 min read
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