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All 19 Claude Code Codex ChatGPT Claude app

Claude app✓ Confirmed in official docsOct 9
Anthropic published 11 plugins for sales, legal, finance and marketing work, for Cowork and Claude Code
anthropics/knowledge-work-plugins hit GitHub's trending list today.
Claude CodeGoing around, but actuallyOct 8
Running every subagent on Haiku takes two env vars, not a --subagents flag
Two posts on X, 10,000 likes between them, call this an "official Anthropic tip": claude --advisor opus --subagents hai…
Claude Code✓ Confirmed in official docsOct 8
Session logs keep your prompts and file contents in full; if a machine was ever exposed, run claude purge
The hacker behind the Korean bank breaches, described in CrowdStrike's October 8 report, had directory listing enabled…
Claude Code✓ Confirmed in official docsOct 8
Make a crashed hook block instead of pass: onFailure block
Until now, a hook that failed to start or timed out let the action through.
Codex✓ Confirmed in official docsOct 8
Codex CLI 0.162: managed git worktrees are built in, and GPT-6.1 Sol is the default model
Two releases in two days.
ChatGPT✓ Confirmed in official docsOct 8
GPT-6.1 Sol Ultrafast is in ChatGPT Work, and the iOS app opens Codex task links directly
Two ChatGPT changes on October 7 and 8.
Claude Code✓ Confirmed in official docsOct 7
@import in CLAUDE.md saves zero tokens; to slim it down, run /doctor prompt-audit
AGENTS.md and CLAUDE.md load in full at the start of every session and ride along on every turn.
Claude Code✓ Confirmed in official docsOct 7
Use Haiku 5.5 for the subagents that find files and read docs; keep edits on Sonnet or Opus
Anthropic's launch post draws the line itself.
Codex✓ Confirmed in official docsOct 7
One command shows which AGENTS.md files Codex actually loaded
At session start Codex reads ~/.codex/AGENTS.md (global), then the project root, then each folder down to where you lau…
Claude app✓ Confirmed in official docsOct 7
Max subscribers now get $100 or $200 of API credits every month
A line tucked into the Haiku 5.5 announcement (October 7): Max 5x subscribers get $100 a month in API credits, Max 20x…
Claude Code✓ Confirmed in official docsOct 7
The creator of Claude Code has three prompting rules: what, how much effort, how to verify
Boris Cherny, who built Claude Code, posted on October 7 and got 13,000 likes.
Claude Code✓ Confirmed in official docsOct 6
Give each subagent its own effort: low for exploring, high for verifying
Since v2.1.292 (October 6), Claude can pass an effort when it spawns a subagent.
Claude Code✓ Confirmed in official docsOct 5
Attach to a background session by part of its name: claude attach, claude logs
Background sessions started with claude agents can be addressed by name since v2.1.290 (October 5).
Claude Code✓ Confirmed in official docsOct 5
The skill pack that gained 7,000 stars this week: /grill-me interrogates your plan before you start
Matt Pocock's skills picked up 7,400 stars on GitHub's weekly trending list.
Claude Code✓ Confirmed in official docsOct 2
A prompt cleared with Ctrl+C comes back with ↑, and you can cap how many code-review findings you get
Three small changes in v2.1.288 (October 2) that you'll use daily.
Claude Code✓ Confirmed in official docsOct 2
Install Addy Osmani's 25 engineering skills with one command
Addy Osmani (ex-Google, now writing Claude Code guides on claude.dev) packaged his engineering workflow as 25 skills.
Codex✓ Confirmed in official docsOct 2
One config line hands Codex approval prompts to a reviewer agent: approvals_reviewer
The useful part of this week's viral "split Codex across models" post is a single setting.
Claude Code✓ Confirmed in official docsOct 1
Claude Code now has a built-in mod that watches your session and flags what you missed, one command to turn on
Since v2.1.287 (October 1), plugins can change Claude Code's UI and behavior through "Mods".
Claude Code✓ Confirmed in official docsOct 1
Have Claude read your last 20 session logs and turn what you keep asking into mods
Claude Code keeps every session as .jsonl under ~/.claude/projects/<project/.

AI tool tips

Anthropic published 11 plugins for sales, legal, finance and marketing work, for Cowork and Claude Code

Running every subagent on Haiku takes two env vars, not a --subagents flag

Session logs keep your prompts and file contents in full; if a machine was ever exposed, run claude purge

Make a crashed hook block instead of pass: onFailure block

Codex CLI 0.162: managed git worktrees are built in, and GPT-6.1 Sol is the default model

GPT-6.1 Sol Ultrafast is in ChatGPT Work, and the iOS app opens Codex task links directly

@import in CLAUDE.md saves zero tokens; to slim it down, run /doctor prompt-audit

Use Haiku 5.5 for the subagents that find files and read docs; keep edits on Sonnet or Opus

One command shows which AGENTS.md files Codex actually loaded

Max subscribers now get $100 or $200 of API credits every month

The creator of Claude Code has three prompting rules: what, how much effort, how to verify

Give each subagent its own effort: low for exploring, high for verifying

Attach to a background session by part of its name: claude attach, claude logs

The skill pack that gained 7,000 stars this week: /grill-me interrogates your plan before you start

A prompt cleared with Ctrl+C comes back with ↑, and you can cap how many code-review findings you get

Install Addy Osmani's 25 engineering skills with one command

One config line hands Codex approval prompts to a reviewer agent: approvals_reviewer

Claude Code now has a built-in mod that watches your session and flags what you missed, one command to turn on

Have Claude read your last 20 session logs and turn what you keep asking into mods