checkpoint

checkpoint is a command for Claude Code from jungjaehoon-lifegamez/MAMA. It costs 9 tokens per session (1,009 once invoked), scanned A, original, MIT.

A command for saving the current coding session as a checkpoint for a later session.

In plain words
What is it for?
Use it at the end of work to record the goal, verification status, remaining tasks, and next-agent instructions.
Why use it?
It creates a clear handoff that records progress, evidence, unfinished work, risks, and suggested checks for whoever continues.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the mama plugin — 2 skills, 5 commands, 2 agents shipped together

Good fit Use it at the end of work to record the goal, verification status, remaining tasks, and next-agent instructions.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/jungjaehoon-lifegamez/mama/checkpoint
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/jungjaehoon-lifegamez/MAMA

Made for: Claude Code.

Or install mama, the plugin that ships this one along with the rest of its 2 skills, 5 commands, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for checkpoint

README.md
[![agentmods](https://agentmods.dev/badge/commands/jungjaehoon-lifegamez/mama/checkpoint/github.svg)](https://agentmods.dev/commands/jungjaehoon-lifegamez/mama/checkpoint)
Your own site
<a href="https://agentmods.dev/commands/jungjaehoon-lifegamez/mama/checkpoint"><img src="https://agentmods.dev/badge/commands/jungjaehoon-lifegamez/mama/checkpoint/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for checkpoint

Your own site · 80×15
<a href="https://agentmods.dev/commands/jungjaehoon-lifegamez/mama/checkpoint"><img src="https://agentmods.dev/badge/commands/jungjaehoon-lifegamez/mama/checkpoint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,009 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00009 $0.01009
Opus 5 $0.00005 $0.00504
Sonnet 5 $0.00002 $0.00202
Haiku 4.5 $0.00001 $0.00101

Measured 10d ago against content hash 9a3a2c261a74, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

checkpoint scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Quick checks: npm test ..., curl http://localhost:3000/health
packages/claude-code-plugin/commands/checkpoint.md · 125 lines

How it starts

The opening of the file, as written. The whole thing — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Save Session Checkpoint (with Self-Verification)

You are helping the user save the current session state to MAMA memory.

User Arguments: $ARGUMENTS

💬 Checkpoint Writing Guide

A checkpoint is a handoff to the next AI. Be candid so the next person can resume fast.

🤔 Ask yourself before writing

  1. Goal & Progress? What was today’s goal and where did you stop?
  2. Evidence? What did you verify? Mark status as Verified | Not run | Assumed.
  3. Unfinished/Risks? What’s incomplete, blocked, or risky?
  4. Next Agent Briefing? What quick health/start commands should they run first?

It doesn’t have to be perfect—state what’s missing.

😊 Good pattern

# 🎯 Goal & Progress

- Goal: [Session goal]
- Progress: [What you did, where you stopped, why unfinished]

# ✅ Evidence & Verification

- File `path/to/file.js` — Status: Verified (cite test/log/line)
- Command `npm test ...` — Status: Not run (reason: time)
- Log `[MAMA MCP] ...` — Status: Assumed (reused log)

# ⏳ Unfinished & Risks

- Remaining work: ...
- Tests/health checks not run: ... (reason)
- Risks/unknowns: ...

# 🚦 Next Agent Briefing

- DoD: [Definition of Done for next session]
- Quick checks: npm test ..., curl http://localhost:3000/health
- Constraints: [Constraints/cautions]

🔧 Trust lift (after resume): run 1-2 quick checks above, sample-verify one claim per section (file/log/command), and relabel Assumed → Verified/Not run before re-saving.

Step 4: Call MCP Tool

mcp__plugin_mama_mama__save({
  type: 'checkpoint',
  summary: '...', // Use the Goal/Evidence/Unfinished format above
  open_files: ['file1.js', 'file2.md'],
  next_steps: 'DoD + quick checks (e.g., npm test ..., curl ...)',
});

😅 This makes handoff hard

Vague:

  • "Epic 3 done!" → unclear what’s done

Better:

  • "Epic 3: Story 3.1-3.2 done; 3.3 coded but untested"

Instead of “all done”:

  • "proposeLink implemented (file.js:100), tests not written"

Read the full file on GitHub · 125 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 125 lines · 9 tokens per session scan A 9a3a2c261a74

Subscribe to this mod's changes

checkpoint is a command published in the GitHub repository jungjaehoon-lifegamez/MAMA (13 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 1,009 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.