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So I was updating Claude Code to version
2.1.233 the other morning,

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mate, and I noticed my custom subagents
suddenly started throwing errors.

3
00:00:09,920 --> 00:00:13,939
Turns out Anthropic disabled built in task
tracking tools like TaskCreate,

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TaskGet, TaskUpdate, TaskList, and
TodoWrite by default on all the newer models.

5
00:00:18,891 --> 00:00:23,631
Wait, they straight up removed TaskCreate
and TodoWrite on Sonnet 5 and Opus 4.8?

6
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Yeah, on Sonnet 5, Opus 4.8, Fable 5, and
Mythos 5, it is just turned off out of the

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box now.

8
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The idea is that these newer frontier
models have enough raw reasoning capacity to

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hold a multi step refactoring plan right
in their working context without needing

10
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structured tool calls.

11
00:00:42,537 --> 00:00:44,757
Which makes sense for latency, right?

12
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Like, stripping out those explicit todo
tool calls means less prompt token bloat and

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faster turn responses overall.

14
00:00:51,349 --> 00:00:51,949
Spot on.

15
00:00:52,809 --> 00:00:57,609
But if you have automated scripts or
workflows expecting that specific TaskCreate

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JSON output, it, it, it just breaks.

17
00:01:04,244 --> 00:01:04,265
Exactly.

18
00:01:04,805 --> 00:01:09,824
So how do we get those task tools back if
our existing skill setups actually rely on

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them?

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00:01:09,958 --> 00:01:11,318
It is pretty simple, actually.

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You just export an environment variable,
CLAUDE CODE ENABLE TODO TOOLS equals one.

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You can toss that into your dot bashrc,
dot zshrc, or right in your project dot env

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file.

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Okay, so if you set CLAUDE CODE ENABLE
TODO TOOLS to one, it forces those tools back

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on.

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But I guess the trade off is higher per
turn input token consumption?

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Yeah, fair dinkum.

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You are feeding those tool definitions
back into the prompt every single exchange,

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so it definitely inflates the context
token count a bit.

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So the play here is, leave it off for
quick single file fixes or pure code

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generation where you want cheap, snappy
turns, but toggle it on when you are doing

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massive, multi file codebase refactors
that really benefit from an explicit task

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checklist.

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100 percent.

35
00:02:04,027 --> 00:02:10,427
And look, version 2.1.233 snuck in a
couple of other handy quality of life tweaks

36
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too.

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They added a forward user identity gateway
setting, which is massive for teams doing

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per user FinOps spend attribution.

39
00:02:18,867 --> 00:02:19,587
Oh, nice!

40
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So enterprise admins can track exactly who
is burning through tokens on the API

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gateway level.

42
00:02:24,954 --> 00:02:25,634
Precisely.

43
00:02:26,554 --> 00:02:31,295
Plus they patched a security vulnerability
involving the Windows NT path device

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prefix, backslash question mark question
mark backslash, which stops NTLM credential

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leak vectors in their tracks.

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Man, blocking NTLM credential leaks on
Windows is always a welcome fix.

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So bottom line, if your subagents broke on
update 2.1.233, just export CLAUDE CODE

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ENABLE TODO TOOLS equals one and you are
good to go.

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Easy as that.

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Catch you next time, mate.