[kalil0321]

Why

A full-page screenshot exceeds the Claude SDK's default 1 MB message buffer, and the run fails with engine_failure and no HAR. (Isolation from the user's own MCP servers, the other half of the original bug, landed on main with #151's build_sdk_settings().)

What

• SDK_MAX_BUFFER_SIZE (32 MB) in utils.py, passed as max_buffer_size to every ClaudeAgentOptions: auto/agent mode, engineer, collector, folder naming.

Verification

• pytest: 1208 passed; ruff and mypy clean (uv sync --all-extras --locked).
• Before main's isolation and this buffer: an auto YC directory capture crashed on a 1 MB screenshot. With both: 50 Playwright calls, 842 KB HAR, status: ok, and engineer on that run status: ok.

Out of scope

• Nothing else; main's SDK pin (claude-agent-sdk>=0.2.174) already supports max_buffer_size.

Confidence Score: 5/5

No identified issues block merging this PR.

Summary

Raises the Claude SDK message buffer to 32 MiB across every session, covering auto/agent mode, engineer, collector, and folder naming. Adds checks for the buffer setting and updates the changelog.

No actionable issues found. Tests were not run during this review.

• Claude sessions accept messages up to 32 MB.

_{Reviews (2) · Last reviewed commit: "Merge remote-tracking branch 'origin/fea..." · Reviewed by Greptile}

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-28T20:44:06.536349Z	fa01336	New commits

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: b660687585

ℹ️ About Codex in GitHub

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• Open a pull request for review
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• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

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[chatgpt-codex-connector]

Raise the SDK minimum before passing strict_mcp_config

For installations retaining claude-agent-sdk==0.1.48, which still satisfies the dependency declared in pyproject.toml, every call using this helper raises TypeError: ClaudeAgentOptions.__init__() got an unexpected keyword argument 'strict_mcp_config'. The 0.1.48 options definition has no such field. This prevents Claude auto, engineer, and collector sessions from starting, even though testing against the newer locked SDK succeeds. Raise the declared SDK minimum to a version supporting this option, or pass the isolation flag through the older SDK's supported extra_args mechanism.

Useful? React with 👍 / 👎.

[cubic-dev-ai]

1 issue found across 7 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. When an issue isn't valid or won't be fixed in this PR, reply in its thread with the reason and then resolve the thread. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="CHANGELOG.md">

<violation number="1" location="CHANGELOG.md:18">
P3: `provider rae configured` is grammatically ambiguous and inconsistent with the changelog’s `RAE` branding. Change it to `the provider configured by RAE`.</violation>
</file>

<sub>Reply with feedback, questions, or to request a fix.

View guided diff | Turn on auto-fix | Re-trigger cubic</sub>

[cubic-dev-ai]

P3: provider rae configured is grammatically ambiguous and inconsistent with the changelog’s RAE branding. Change it to the provider configured by RAE.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. When an issue isn't valid or won't be fixed in this PR, reply in its thread with the reason and then resolve the thread. At CHANGELOG.md, line 18:

<comment>`provider rae configured` is grammatically ambiguous and inconsistent with the changelog’s `RAE` branding. Change it to `the provider configured by RAE`.</comment>

<file context>
@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Playwright MCP prompt: `browser_run_code` is now `browser_run_code_unsafe`, and the nonexistent `browser_scroll` tool is no longer listed.
+- Claude SDK sessions no longer load the user's own Claude Code MCP servers (`strict_mcp_config`), so a personal browser MCP such as chrome-devtools can no longer replace the provider rae configured, and the message buffer is raised to 32 MB so a large screenshot no longer aborts a run.
 
 ### Security
</file context>

Suggested change

	- Claude SDK sessions no longer load the user's own Claude Code MCP servers (`strict_mcp_config`), so a personal browser MCP such as chrome-devtools can no longer replace the provider rae configured, and the message buffer is raised to 32 MB so a large screenshot no longer aborts a run.
	- Claude SDK sessions no longer load the user's own Claude Code MCP servers (`strict_mcp_config`), so a personal browser MCP such as chrome-devtools can no longer replace the provider configured by RAE, and the message buffer is raised to 32 MB so a large screenshot no longer aborts a run.