feat: checkpoint resume and fetchIssueByRef#43
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与上游合并后保留的独有功能： - Checkpoint 断点恢复：scout/select 后自动保存，失败重启时提示 Resume - 多方案选择：非 headless 模式 LLM 生成 2-3 个方案供选择 - fetchIssueByRef：通过 owner/repo#number 直接获取单个 issue 上游已有翻页延迟、--issue、--repo、onStatus 等功能，本 PR 仅 新增上游尚未实现的功能。
- Checkpoint auto-saves after scout/select stages, allows resume on restart - fetchIssueByRef fetches a single GitHub issue by owner/repo/number - Removed multi-approach patch (deemed redundant by upstream maintainer) Checkpoint expires after 1 hour and auto-cleans on successful run.
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Two practical improvements on top of upstream:
1. Checkpoint Resume
Automatically saves a checkpoint after the scout and select stages complete. If the agent fails during workspace prep (network issues, clone failures, etc.), the next run will prompt:
Choosing Resume skips the expensive search and LLM scoring phases, jumping straight to where the failure occurred. Checkpoints expire after 1 hour and are auto-cleaned on successful runs.
2. fetchIssueByRef
Adds a method to fetch a single GitHub issue directly by
owner/repo/number, used by the--issueflag to load targeted issues without going through search.Files Changed
src/orchestration/agent.ts— checkpoint save/load/clear, checkpoint-aware scout/select flowsrc/services/github.ts— fetchIssueByRef methodTesting
TypeScript typecheck and build both pass cleanly.
Note
A multi-approach patch feature was initially included but has been removed per upstream maintainer feedback (redundant, risks LLM hallucinations and wasted tokens).