cf-checkpoint-from

cf-checkpoint-from is a skill for Claude Code from dinhanhthi/coding-friend. It costs 73 tokens per session (1,452 once invoked), scanned A, original, MIT.

A checkpoint-loading skill that restores saved project context into a new conversation. A checkpoint records the current goal, decisions, state, and next steps.

In plain words
What is it for?
Use it when resuming interrupted work from a saved checkpoint or continuing a task with its previous decisions and next steps.
Why use it?
It prevents you from having to reconstruct context after starting a fresh conversation. It reads an existing checkpoint but does not create or edit one.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is **CLI Requirement:** NONE — Works without `coding-friend-cli`. Reads the checkpoint file directly from disk; no CLI features are required. See [CLI requirements.

Good fit Use it when resuming interrupted work from a saved checkpoint or continuing a task with its previous decisions and next steps.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/dinhanhthi/coding-friend
agentmods
npx agentmods add skills/dinhanhthi/coding-friend/cf-checkpoint-from

Made for: Claude Code.

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 cf-checkpoint-from

README.md
[![agentmods](https://agentmods.dev/badge/skills/dinhanhthi/coding-friend/cf-checkpoint-from.svg)](https://agentmods.dev/skills/dinhanhthi/coding-friend/cf-checkpoint-from)
Your own site
<a href="https://agentmods.dev/skills/dinhanhthi/coding-friend/cf-checkpoint-from"><img src="https://agentmods.dev/badge/skills/dinhanhthi/coding-friend/cf-checkpoint-from.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,452 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00073 $0.01452
Opus 5 $0.00036 $0.00726
Sonnet 5 $0.00015 $0.00290
Haiku 4.5 $0.00007 $0.00145

Measured 7d ago against content hash d3a61696eaa1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

cf-checkpoint-from 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 7d 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.

plugin-antigravity/skills/cf-checkpoint-from/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/cf-checkpoint-from

CLI Requirement: NONE — Works without coding-friend-cli. Reads the checkpoint file directly from disk; no CLI features are required. See CLI requirements for the full matrix.

Argument: $ARGUMENTS

Purpose

Load a saved checkpoint into the current (fresh) conversation as working context — goal, state, decisions, next steps — then continue the task. This is the counterpart to /cf-checkpoint, which captures that context; this skill only reads and restores it, it never creates or edits a checkpoint file.

IMPORTANT — path resolution:

  • Use MAIN_REPO_ROOT from the SessionStart bootstrap context (injected via session-init.sh). If absent, fall back to running pwd for $CWD and use $CWD as MAIN_REPO_ROOT.
  • Read config from CF_CONFIG_FILE (= $MAIN_REPO_ROOT/.coding-friend/config.json) — do NOT search sub-folders.
  • Use CF_DOCS_ROOT as the docs base dir (= $MAIN_REPO_ROOT/{docsDir} where docsDir comes from config, default docs).
  • Checkpoints live under {CF_DOCS_ROOT}/context/checkpoints/.
  • Always resolve paths as absolute paths — never relative, they may resolve incorrectly when the working directory contains nested git repos.

Workflow

Step 0: Custom Guide

Custom guide — auto-loaded below (if the raw command shows instead of its output, run it yourself):

bash "<plugin-root>/lib/load-custom-guide.sh" cf-checkpoint-from

If output is not empty, integrate returned sections: ## Before → before first step, ## Rules → apply throughout, ## After → after final step.

Step 1: Parse the argument

Split $ARGUMENTS into three parts:

  1. --recap flag — remove it from anywhere in the argument first. Its presence sets recap ON (default OFF). It is not part of the slug or the message.
  2. Checkpoint slug — the first remaining token (a bare <slug> or a full file path).
  3. User message — everything after that first token. This is the trusted instruction: what to do once context is loaded. May be empty.

Read the full file on GitHub · 93 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. 7d ago First seen · 93 lines · 73 tokens per session scan A d3a61696eaa1

Subscribe to this mod's changes

cf-checkpoint-from is a skill published in the GitHub repository dinhanhthi/coding-friend (3 stars, last pushed yesterday), licensed MIT. It adds 73 tokens to every session and 1,452 once invoked, about $0.0004 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.

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