[codex] Document OpenCode agent candidate decisions

[seonghobae]

Summary

• Documents the live OpenCode Agent candidate review for im-not-ai, ponytail, code-review-graph, and KKTV.
• Records which ideas are adapted into OpenCode/Strix review contracts and which runtime/toolchain imports are intentionally rejected.
• Captures the .github PR feat: implement email parsing and database models #2 all-model-failure case and the current fallback behavior that prevented a bad approval while allowing a metadata-only PR to merge after same-head gates were clean.

Validation

• git diff --check
• focused contract grep for CodeGraph MCP, Ponytail minimal-change guidance, im-not-ai Korean prose constraints, KKTV/CWE category language, and OPENCODE_MODEL_ATTEMPTS: "2"
• bash -n for OpenCode/Strix shell scripts touched by the contract
• python3 -m py_compile scripts/ci/opencode_review_normalize_output.py
• actionlint -shellcheck= -pyflakes= .github/workflows/opencode-review.yml .github/workflows/strix.yml

Notes

Full scripts/ci/test_strix_quick_gate.sh was not used as passing evidence from the sparse worktree: it depends on broader fixture/source files and was interrupted after sparse-environment fixture failures. CI should run the repository-normal version.

[opencode-agent]

Pull request overview

OpenCode model attempts did not produce a usable control block, but the trusted gate verified that this PR has no failed peer GitHub Checks, no pending peer GitHub Checks, no unresolved human review threads, and no merge conflict.

Findings

No blocking findings.

Summary

Deterministic low-risk fallback approval was used because every changed file is documentation, policy, or non-executable metadata:

• docs/development/opencode-agent-candidate-review-2026-06-22.md

This fallback is not used for workflow, source-code, script, dependency, infrastructure, configuration, or lockfile changes.

• Result: APPROVE
• Reason: OpenCode model output was unavailable, but the changed-file allowlist and trusted gate checks passed for current head f6140af4f1d12761785a5cda7e21ba1f3b4c1890.
• Head SHA: f6140af4f1d12761785a5cda7e21ba1f3b4c1890
• Workflow run: 27927791251
• Workflow attempt: 1

[opencode-agent]

OpenCode Review Overview

• Head SHA: f6140af4f1d12761785a5cda7e21ba1f3b4c1890
• Workflow run: 27927791251
• Workflow attempt: 1
• Gate result: APPROVE (approval step)

Pull request overview

OpenCode model attempts did not produce a usable control block, but the trusted gate verified that this PR has no failed peer GitHub Checks, no pending peer GitHub Checks, no unresolved human review threads, and no merge conflict.

Findings

No blocking findings.

Summary

Deterministic low-risk fallback approval was used because every changed file is documentation, policy, or non-executable metadata:

• docs/development/opencode-agent-candidate-review-2026-06-22.md

This fallback is not used for workflow, source-code, script, dependency, infrastructure, configuration, or lockfile changes.

• Result: APPROVE
• Reason: OpenCode model output was unavailable, but the changed-file allowlist and trusted gate checks passed for current head f6140af4f1d12761785a5cda7e21ba1f3b4c1890.
• Head SHA: f6140af4f1d12761785a5cda7e21ba1f3b4c1890
• Workflow run: 27927791251
• Workflow attempt: 1

Risk Graph

flowchart LR
  Change[Changed surface] --> Risk[Main risk]
  Risk --> Fix[Smallest fix]
  Fix --> Verify[Verification]

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