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feat: add minimal scrub mode with environment deduplication - #19
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MERIDIAN_OPENCODE_SCRUB_MODE=minimalwhile keeping aggressive defaults unchanged. Minimal removes known identity/runtime fingerprints and duplicate environment preambles, preserves client cwd/project/persona policy, and avoids a generic identity and residual brand rewriting. Restore current main's passthrough guards, OMO fixes, package metadata and newline handling during reconciliation.Preserve briankeefe's actual source commit
40094cd9adaef32456befa54c1b969d611785395as authored cherryeddcf85a40701b94c6b95cfbe16b7cd644d57350with Author/AuthorDate intact. Separate maintainer correctiona2c479caddresses the owner's existing review: the authored minimal function reproduced a retained environment preamble, which the corrected tests remove while retaining cwd.Validation: 28 tests / zero failures; standalone typecheck, build, dry-run pack and two-fixture byte-identical aggressive default comparison. Independently installed packed plugin passes actual headless OpenCode 1.18.33 / Opus 5.5 / SDK 0.2.141 / Claude Code 2.1.284 on macOS arm64 in both modes: one actual read each, random client-only tool receipt reaches SDK, same-session continuation, zero client errors and four scrub invocations / zero errors. Maintained headless harness and durable results/limits included. Original contributor failing client/model omitted; live OMO and universal billing remedy are not claimed. No package publication or version bump.
Incorporates #5. Final-head build CI passed (tests, build and pack). The final escrowed minimal harness also passed after removing unrelated fixture branches.