Allow restricting making CLI network requests only to certain ports on the proxy

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Quiet
Tech stack
rust
Domain
cli, networking, security

Research direction

The issue names no files, tests, or entry points. Start by locating the CLI network permission configuration and proxy request handling, then trace how domain and localhost access are evaluated. Done means users can allow selected localhost ports, such as localhost:8000, while denying other ports and retaining existing domain controls.

Written by the indexing model from the issue text.

Description

CLI config connectivity enhancement sandbox
What variant of Codex are you using?

CLI

What feature would you like to see?

I want to allow codex to access certain localhost ports but not others. This is because some servers can give wide system access which I want to prevent.

On codex-cli 0.146.0 I can control access to only certain domains with:

[permissions.workspace_custom.network]
enabled = true
allow_local_binding = true

[permissions.workspace_custom.network.domains]
"localhost" = "allow"
"127.0.0.1" = "allow"

but it does no seem possible to select specific ports only, e.g. localhost:8000?

Additional information

No response

Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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