Two pure-leaf follow-ups closing the Block H tail:
- base/reasoningEffort.ts: provider-aware reasoning_effort sanitation
(MISTRAL/GITHUB reject patterns, supportsMaxEffortForProvider,
sanitizeReasoningEffortForProvider). Deps are config/services only
(PROVIDER_CLAUDE, isClaudeCodeCompatible, supportsClaudeMaxEffort/supportsXHighEffort)
so the leaf never imports the host — no cycle. base.ts re-exports
sanitizeReasoningEffortForProvider for its external importers (mimoThinking + tests).
base.ts 1466 -> 1312 LOC.
- codex/tools.ts: Responses-API tool normalization (CODEX_HOSTED_TOOL_TYPES hosted-tool
passthrough, isCodexFreePlan gating, normalizeCodexTools). Self-contained
(console.debug only). codex.ts re-exports isCodexFreePlan + normalizeCodexTools for
external importers (tests + provider services). codex.ts 1430 -> 1268 LOC.
Byte-identical bodies (verbatim: base 100/100, codex 126/126); both leaves have zero host
imports. Adds two split-guards asserting the leaf owns the symbol and both import paths
resolve to the same function. Consumer tests stay green (base-executor-sanitize-effort 34,
executor-codex 40, mimoThinking 9, codex-free-plan-image-generation 3, issue-fixes 6).
