Alex Daley 0f9a731ade Preserve deferred tool namespace names before descriptions (#48574) ...

## Why

Long descriptions could exhaust the 4 KiB tool summary budget and hide later namespace names, limiting their visibility for tool discovery.

## What changed

- Reserve space for all namespace names before sharing the remaining budget across descriptions, including added and removed groups.
- Truncate descriptions at UTF-8 boundaries with `...`, including at the existing 250-character cap. Omit whole namespaces only when names alone exceed the budget, reserving omission notices only in that case.
- Render namespace names and descriptions without XML escaping.

## Testing

Add unit and snapshot coverage for description allocation, Unicode boundaries, namespace omissions, and empty-state notices. Add a scenario verifying that a crowded catalog retains every namespace name, allows discovery of a late namespace with its full description, and keeps the summary unchanged on follow-up.

GitOrigin-RevId: 9743cda5aa14190db22c788c9e91e1785a32682b

2026-09-26 23:46:10 +00:00

..

common

Allow exec-server to proxy permitted private IPs upstream (#48568)

2026-09-26 23:17:41 +00:00

remote_env_windows

Apply remote platform semantics to exec safety checks (#42113)

2026-09-01 18:24:56 +00:00

suite

Preserve deferred tool namespace names before descriptions (#48574)

2026-09-26 23:46:10 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00

mcp_trace_propagation.rs

Preserve MCP request trace context across transport workers (#47212)

2026-09-22 06:47:07 +00:00

responses_headers.rs

Preserve tool metadata for OpenAI provider endpoint overrides (#48344)

2026-09-26 03:49:14 +00:00