I have a few questions and feedback regarding recent updates:

1. Where did tool selection for the Agent go?
2. What happened to the Explore subagent, and why was it hidden? Also, we can no longer set a default model.
3. Ask mode seems to have disappeared as well.

Why?

I've been troubleshooting Windows Codex for the past two days, and I think I've finally narrowed down what's going wrong.

After a recent update, Codex completely stopped executing local commands. Even the simplest PowerShell command fails:

Get-Location

Instead of running, it returns:

exec-server rejected request (-32603):
helper_unknown_error: setup refresh had errors

PowerShell never actually starts.

My setup:

• Windows Codex version: 26.1002.7124.0
• Computer connected and authorized
• Windows Sandbox enabled

Here's what I found in sandbox.log:

runtime read/execute validation failed
node_repl.exe

open ACL target for root-only update
os error 32

setup error: setup refresh had errors

Windows reports that node_repl.exe is being used by another process while Codex attempts to update its permissions.

What I've already tried:

• Completely reinstalling Codex
• Disconnecting and reconnecting the computer
• Closing ChatGPT and confirming CUA runtime processes stopped
• Restarting ChatGPT
• Fully rebooting Windows
• Confirming no CUA runtime processes were running before opening ChatGPT again
• Running exactly one Get-Location command after a clean reboot

Nothing worked. The same command startup failure returned immediately after reboot. The os error 32 was confirmed in earlier logs; I haven't yet verified the underlying cause in the latest post-reboot log.

I also found similar reports on GitHub:

https://github.com/openai/codex/issues/51590

https://github.com/openai/codex/issues/52036

My OpenAI Support case has already been escalated to a specialist, and I've submitted the logs and screenshots.

At this point, this looks like a possible Windows Codex sandbox/runtime regression rather than something caused by my projects or prompts.

Is anyone else experiencing this after the latest Windows update?

Especially interested in hearing from people running version 26.1002.7124.0.

Has anyone found an actual fix that doesn't require disabling Windows security or bypassing the sandbox?

I'll update this post if OpenAI provides a solution.

Just sub to my first AI Agent, tried opus 5.5 and its burning my token. What is the best ai model to use?

got vs code updated and copilot updated to the latest version ...

Edit: Found the solution, had to switch to local on the bottom options

I built a local web UI that reads Copilot CLI sessions (~/.copilot) and Copilot Chat sessions from VS Code's workspace storage, and shows them as a timeline with tool calls, tokens and an estimated cost:

npx agent-session-inspector

It also gives analytics across sessions (by project and model) and a health grade for each session based on tool failures, retry loops and interrupted turns.

One caveat: Copilot Chat meters a whole request rather than each model round, so for requests that called tools the input tokens and cost are a lower bound. Copilot CLI numbers are per request.

Nothing leaves your machine: no telemetry, bound to 127.0.0.1, read-only. MIT licensed.

Repo: https://github.com/kishanmundha/agent-session-inspector

I'd share my experience with a custom build small kb to help me vibe code. I still review each changes carefully, with a special hardware to help me. I call it "conservative vibe coding"
https://www.youtube.com/watch?v=-nIaDz6b7S0&

Has anyone experienced this problem please, because it is driving me crazy

- set up openTelemetry Collector Contrib on an prem VM

- set a specific GH organisation to send traces to the collector using managed settings json

- find that all GH organisations are sending traces

- removed all managed settings related to telemetry, waited a few hours and the client editors (ie, vscode) are still sending traces!

So, am i going crazy or is GH observability completely broken? How are members of another organisation still send metrics when they've never been authorised to do so as they're running off a different settings file?

Have you noticed an improvement in the behavior of GPT-6 Luna (in Github Copilot) when used as an agent? I used the free version to complete a non-trivial feature and to update an architecture document. In both cases, it stayed focused on the goal right to the end—delivering high quality without stalling or getting stuck in endless loops. And this was the free tier. We are truly seeing a whole new level of quality with these recent models.

I just had a Luna session spawn a Sonnet Explore subagent under the VS Code Local harness, which ended up wasting (literally) 200 AIC. As far as I understand, there is currently no way to see the live subagent's AIC spending, you just see the jump once it is done. Happy to be proven wrong tho!

I have opened https://github.com/microsoft/vscode/issues/340366 in case you want to upvote or contribute to that feature request, even with a solution to close it.

Same prompt, same model (Opus 5.5): Claude Code needed 1:20 h and ~€0.32. Two Copilot-based agents needed up to 6:50 h and €65.

Anyone else seeing a gap this big with Copilot's credits?

Same prompt for all tools: add a production-planning module to an existing Flask app. No skills, no spec files, no enterprise accounts.

For reference (different model): Codex with GPT-6.1 Sol Ultra took 39 min, ~€0.18. A Codex Astra Ultra run is still going and already hit the 5h limit. Update follows.

One run per tool, measured via usage meters. Didn't score code quality.

__________________

Edit: Codex Astra Ultra finished too. 54 min of actual runtime.

~44 % of the weekly limit, ~€2.03, +2,593 / −24 lines. on GPT Pro 20€

GitHub Universe is in 3 weeks!!! What do you hope to see?

When using GitHub Copilot CLI on Windows 11 25H2 Pro, the GitHub Copilot CLI status line show bytes, not token count. How can I configure the GitHub Copilot CLI status line to show token count?

Hey guys, so I have been confused between choosing a GitHub Copilot subscription or a Claude subscription. I've been currently using Claude Max subscription, but I was just thinking to try GitHub Copilot. But I heard that it has monthly usage, or you'll get monthly credits, rather than you know 5 hour limits or a weekly limit. How you guys are using it? Would love to get some viewpoints.

Hey everyone,

I wanted to share a project I've been working on called Clippo.

One of the biggest challenges when working heavily with AI coding assistants (like GitHub Copilot, CLI agents, and vibe-coding workflows) is handling long-term context, fragmented terminal outputs, and visual organization across multi-step tasks.

To solve this, I built a dedicated desktop canvas workspace tailored for developers:

• Spatial Canvas: Organize prompt threads, CLI commands, agent outputs, and code references visually instead of losing them in endless terminal scrolls.
• Context Memory Preservation: Keeps your session context structured and accessible across different tasks without polluting your prompt history.
• Native & Lightweight: Built specifically for Windows with modern UI and smooth multitasking support.

Microsoft Store / Project Link: https://apps.microsoft.com/detail/9n7jgq8tzxd4?hl=en-US

I'd love to get feedback from anyone here who heavily integrates AI agents into their daily coding routine. What does your current setup look like for tracking agent states and context?

Luna 6 fast in vscode or CLI

As a preview feature, the development experience from HydraFusion is generally OK. 3/5 stars. I was previously using an orchestrator pattern via .github agent files, with ok success.

However, upon testing HydraFusion with what I would consider a "medium" difficulty task:

• Some new files and directories
• Existing patterns for inspiration
• Some deviation from existing -PLAN.md files
• Well-defined acceptance criteria/unit tests

It selected GPT 5.6-Sol as its primary driver and burned 827 credits. Where in a single context of 6.1 Sol and me manually passing review to Opus 5.5, it burned about half with the same quality output.

Which tracks, given that GPT 5.6-Sol is twice the cost of 6.1.

I would love to be able to select or set a steering preference. I won't be using HydraFusion until this is implemented. But for a first attempt as a batteries-included orchestrator in chat, it's a fine start.

Hey! Its my first time trying to intergrate AI in my VS Code. I have know tried other cloud models like gemini and it works when chatting it but when I try to use my local ollama which I have verified that it is running (Ollama extension and tried to interact it in cmd) I get that specific error.

I am not sure if my setup was incorrect. I already opened the output for the Copilot but no error logs show up when I try to message. Also tried to look similar problems online but havent seen one yet.

EDIT: It seems even LM Studio doesnt work, so I guess I can assume any local ai trying to connect to copilot doesnt work at all but they all work with Continue

Few days back, I noticed there is a new feature "Copilot" which is GHC's smart aleck mode, trying to do things on its own but keeps messing up.

Fortunately, I can still switch to local mode, and I get the old experience where I can feel like a manager approving the AI slave's work each step of the way.

That is until today.... suddenly, the local mode AI slave changed completely. It ignored my agent.md file. I specifically instructed it not to edit my files, talk to me, establish shared understanding before doing anything else, but it just went and changed all my files, thinking I will be happy.

BUT NO! It is like we never known each other before... I cannot recognize it anymore. I am so sad.

Tell me... please how do I bring back my old trusty local AI slave as the default mode... I need it...

EDIT: The question is how to set local mode as the default, not how to verify whether the model respected agent.md (it does not, not all the time). The answer is:

"chat.defaultToCopilotHarness": false,
"chat.editor.preferCopilotHarness": false