[Narada Code 7] Request execution trace capture explicitly

[xTRam1]

Summary

Updates CPython and Pyodide SDK remote-dispatch request construction so execution trace capture is requested only for:

• Agent.run(trace=True)
• an active async with trace(...) session
• inherited NARADA_EXECUTION_TRACE_CONTEXT propagation

Normal Agent.run(...) remains backward-compatible and does not send captureExecutionTrace.

Why

SDK trace materialization is opt-in, so the SDK should not trigger frontend trace capture unless the caller wants a materializable trace proof root or is continuing a parent trace.

Validation

• uv run ruff check packages/narada packages/narada-core packages/narada-pyodide
• uvx ruff@latest format --check --diff packages/narada packages/narada-core packages/narada-pyodide
• uv run pytest packages/narada/tests packages/narada-pyodide/tests/test_cloud_browser.py
• Result: 174 passed.

Live proof

• Signed-in DEV stack: /tmp/narada-e2e-runs/20260610T025557Z-stack-m7-trace-optin-20260609195557
• Untraced SDK request returned no executionTraceContext: 20260610030031-7U9njSw6UDbJZobLXxafC
• Traced SDK request returned context and materialized cleanly: /tmp/narada-workbench-runs/m7-trace-optin-traced-20260610T0300Z
• score and verify passed on the materialized proof root.
• Nested traced Python APA harness backstop passed: /tmp/narada-e2e-runs/20260610T031228Z-executiontrace-1c4df2245561486084520929489cab30

M7 skill dogfood note

The local narada-agent-maker skill package was created and installed, and a first Codex dogfood used it correctly for CLI discovery, scaffolding, authority/validation planning, and positive/negative local validation. I stopped the dogfood before Agent Studio sync/run because the child Codex inspected and printed a plaintext SDK-key artifact. The secret was revoked/deleted/redacted, the skill was patched to forbid reading/printing/copying plaintext key artifacts, and a clean full dogfood rerun remains the next M7 acceptance gate.

Codex sibling refs

• caddie: branch:codex/agent-maker-trace-opt-in
• frontend: branch:codex/agent-maker-trace-opt-in
• architecture-docs: branch:codex/agent-maker-trace-opt-in-docs