section-checkpoint-system

A workflow rule system that marks the end of each project section with completion questions.

In plain words
What is it for?
Use it to verify stages such as setup, documentation, planning, implementation, reflection, and archiving.
Why use it?
It helps catch unfinished requirements before the agent moves to the next section and keeps task status in tasks.md.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/kfnzero/mantis-mcp-server/section-checkpoint-system
Clone the repo
git clone --depth 1 https://github.com/kfnzero/mantis-mcp-server

Made for: Cursor.

Per session 1,770 This file is loaded in full into every session.
When invoked 1,770 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01770 $0.01770
Opus 5 $0.00885 $0.00885
Sonnet 5 $0.00354 $0.00354
Haiku 4.5 $0.00177 $0.00177

Measured 2d ago against content hash 47d12d45f6d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

section-checkpoint-system scanned grade A with 0 findings 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.cursor/rules/Core Implementation/section-checkpoint-system.mdc · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ENHANCED SECTION CHECKPOINT SYSTEM

TL;DR: This system adds clear, prominent checkpoint markers at the end of each workflow section with YES/NO questions to verify completion before moving on. The system uses tasks.md as the single source of truth for task status tracking.

🚨 SECTION TRANSITION MARKERS

Use these visual markers to clearly indicate section transitions:

======== INITIALIZATION COMPLETE ⟹ STARTING DOCUMENTATION SETUP ========

======== DOCUMENTATION SETUP COMPLETE ⟹ STARTING TASK PLANNING ========

======== TASK PLANNING COMPLETE ⟹ STARTING IMPLEMENTATION ========

======== IMPLEMENTATION COMPLETE ⟹ STARTING REFLECTION ========

======== REFLECTION COMPLETE ⟹ STARTING ARCHIVING ========

======== ARCHIVING COMPLETE ⟹ TASK FINISHED ========

✓ ENHANCED CHECKPOINT TEMPLATE

✓ SECTION CHECKPOINT: [SECTION NAME]
- Requirement 1? [YES/NO]
- Requirement 2? [YES/NO]
- Requirement 3? [YES/NO]
- Section tracking updated to [X]? [YES/NO]

→ If all YES: Ready for next section
→ If any NO: Fix missing items before proceeding

✓ INITIALIZATION CHECKPOINT

✓ SECTION CHECKPOINT: INITIALIZATION
- ALL Memory Bank files reviewed? [YES/NO]
- Task objective clearly stated? [YES/NO]
- Platform identified and documented? [YES/NO]
- .cursorrules file (not directory) created/updated? [YES/NO]
- tasks.md verified to exist? [YES/NO]
- Reference check completed? [YES/NO]
- Section tracking updated to [X]? [YES/NO]

→ If all YES: Ready for DOCUMENTATION SETUP
→ If any NO: Fix missing items before proceeding

✓ DOCUMENTATION SETUP CHECKPOINT

✓ SECTION CHECKPOINT: DOCUMENTATION SETUP
- systemPatterns.md updated? [YES/NO]
- techContext.md updated with platform information? [YES/NO]
- activeContext.md updated? [YES/NO]
- progress.md updated? [YES/NO]
- tasks.md created/updated with initial task? [YES/NO]
- .cursorrules updated with project patterns? [YES/NO]
- Section tracking updated to [X]? [YES/NO]

→ If all YES: Ready for TASK PLANNING
→ If any NO: Fix missing items before proceeding

Read the full file on GitHub · 218 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. 2d ago First seen · 218 lines · 1,770 tokens per session scan A 47d12d45f6d0

Subscribe to this mod's changes

section-checkpoint-system is a cursor rule published in the GitHub repository kfnzero/mantis-mcp-server (10 stars, last pushed 12mo ago), licensed MIT. It adds 1,770 tokens to every session, about $0.0089 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.