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SKILL verified MIT Self-run

Checkpoint

skill-hsuanyulee-polaris-checkpoint · by HsuanYuLee

保存、恢復、列出長 session checkpoint；記錄 branch、ticket、todo、recent activity，方便中斷或 context compression 後接續。

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Install

$ agentstack add skill-hsuanyulee-polaris-checkpoint

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

Checkpoint

checkpoint 保存、恢復、列出長 session 的工作狀態，讓 context compression 或換 session 後能接回 branch、ticket、phase、next action。

Contract

Checkpoint 是 session continuity tool，不是 planning、triage、或 implementation skill。 它只寫 workspace memory / timeline 類的 local state，不替下游 skill 決定 scope，也不自動切 branch。

Mode Routing

| User says | Mode | Reference | |---|---|---| | checkpoint, 存檔, save checkpoint, save state | save | checkpoint-save-flow.md | | resume, 恢復, resume checkpoint, 接回去 | resume | checkpoint-resume-list-flow.md | | list checkpoints, 列出存檔, show checkpoints | list | checkpoint-resume-list-flow.md |

Ambiguous input defaults to save.

Reference Loading

| Situation | Load | |---|---| | Any run | polaris-project-dir.md, session-timeline.md, shared-defaults.md | | Save | checkpoint-save-flow.md, checkpoint-carry-forward-flow.md | | Resume / list | checkpoint-resume-list-flow.md |

Hard Rules

  • Save must capture branch, git status summary, ticket, todo disposition, phase, next action,

and recent timeline context.

  • 回報 checkpoint saved 前，carry-forward validation 必須通過。
  • Resume verifies the checkpoint branch exists before suggesting a switch.
  • 未取得使用者明確指示前，不切 branch、不 stash、不 rewrite memory。
  • 不可默默丟掉 pending items；每項都要標記 done、carry-forward、或 dropped。

Completion

Save 回傳 branch、ticket、phase、next action、resume phrase。Resume 回傳 checkpoint timestamp、branch、ticket、可取得時的 current status、next action。List 回傳 recent checkpoint rows。

Step 2.5 — L2 Deterministic Check: cross-session-carry-forward

Save mode 的 carry-forward gate 由 checkpoint-carry-forward-flow.md 執行；必須呼叫 scripts/check-carry-forward.sh，通過後才可回報 checkpoint saved。

Post-Task Reflection (required)

Execute post-task-reflection-checkpoint.md before reporting completion.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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