save

save is a skill for Claude Code, Codex from kimon1230/claude_extensions. It costs 24 tokens per session (1,290 once invoked), scanned A, original, MIT.

A checkpoint workflow that saves the current session's progress in a project status file. It records the project, timestamp, work completed, remaining work, and available test results.

In plain words
What is it for?
Use it to save a progress summary during work or before ending a session, without running tests itself.
Why use it?
It reduces the risk of losing track of work between sessions and makes the current state easier to resume later.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions subagents.

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 skills/kimon1230/claude_extensions/save
Any agent
npx skills add kimon1230/claude_extensions --skill save
Clone the repo
git clone --depth 1 https://github.com/kimon1230/claude_extensions

Made for: Claude Code, Codex.

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 save

README.md
[![agentmods](https://agentmods.dev/badge/skills/kimon1230/claude_extensions/save.svg)](https://agentmods.dev/skills/kimon1230/claude_extensions/save)
Your own site
<a href="https://agentmods.dev/skills/kimon1230/claude_extensions/save"><img src="https://agentmods.dev/badge/skills/kimon1230/claude_extensions/save.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,290 The whole file, excluding the scripts and references it only reads on demand.
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 5.1 $0.00024 $0.01290
Opus 5 $0.00012 $0.00645
Sonnet 5 $0.00005 $0.00258
Haiku 4.5 $0.00002 $0.00129

Measured 6d ago against content hash 754f6893f60f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

save 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 6d 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.

skills/save/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Save Progress

This skill must only be invoked from the main session, never from a subagent.

  1. Determine the project name (used for file paths in all later steps): a. If a ~/.claude/status/*/session-progress.md was written earlier this session, reuse that project name. b. Else if inside a git repo with a remote, use the origin remote. Parse the last path component, stripping any trailing .git (e.g., my-lib from [email protected]:user/my-lib.git or https://github.com/user/my-lib.git). c. Else use the basename of the git root (git rev-parse --show-toplevel). d. Else use the basename of the current working directory. e. If still ambiguous, ask the user.

  2. Capture test state (do NOT run tests yourself — a Stop hook already runs pytest automatically):

    • If tests ran recently in this session, reference those results (pass/fail counts).
    • If no test results are available, record "No test results available this session."
    • Do NOT invent results.
  3. Create the directory ~/.claude/status/<project-name>/ if it does not exist.

  4. Write/update ~/.claude/status/<project-name>/session-progress.md with:

    • Timestamp: YYYY-MM-DD HH:MM UTC

    • Current task: what you were working on

    • Completed: detailed progress using typed entries. Each entry is classified and formatted as follows:

      Entry types:

      • Decision: The change involved choosing between alternatives or a non-obvious approach. MUST include a Why: line.
      • Observation: A factual record of what happened with no meaningful alternatives considered. Plain body, no Why: required.
      • When in doubt, prefer decision — better to over-document rationale than lose it.

      Entry format:

      ### [decision] Title describing the choice <!-- id:a1b2c3d4e5f6a7b8 -->
      Why: Rationale for this decision (SACRED — never compress or paraphrase).
      What: Implementation details (optional).
      
      ### [observation] Title describing what happened <!-- id:e5f6a7b8c9d0e1f2 -->
      Plain body text describing the change.
      

      Entry IDs: Generate a unique ID for each new entry — 16 hex characters (e.g., a1b2c3d4e5f6a7b8). Just produce a random-looking 16-char hex string.

      Appending to existing files: When updating an existing session-progress.md, preserve all existing entries verbatim — only append new ones.

      Auto-captured entries: If a ## Auto-captured section exists (added by the auto-capture hook), review those entries:

      • Promote useful ones to the main Completed section.
      • Upgrade observations to decisions with a Why: line where appropriate.
      • Remove the ## Auto-captured section after processing.

      Entry body content — draw from these details as appropriate:

      • Per-batch/phase breakdown when following a plan — what each batch accomplished
      • Files created, modified, or deleted — explicit paths (e.g., src/foo/bar.py — added MyClass, refactored process())
      • Implementation specifics — functions, classes, modules, config options added or changed
      • Issues encountered and workarounds — anything the next session should know about (e.g., "ruff F401 requires atomic edits", "had to retry due to X")
      • Prior session context — when resuming multi-session work, summarize what earlier sessions completed so the file is self-contained
    • Remaining: bullet list of what's left, with enough detail to pick up without re-reading the plan

    • Test state: from step 2

    • Key decisions: any architectural or design choices made

    • Active plan: path to the current plan file in ~/.claude/plans/<project-name>/, or "None"

    • Context needed to continue: anything a fresh session needs to know (key file paths, uncommitted state, critical checkpoints, next batch to start)

  5. Update or create ~/.claude/status/<project-name>/project-status.md — the cumulative project history across all sessions:

Read the full file on GitHub · 90 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. 6d ago First seen · 90 lines · 24 tokens per session scan A 754f6893f60f

Subscribe to this mod's changes

save is a skill published in the GitHub repository kimon1230/claude_extensions (4 stars, last pushed 2mo ago), licensed MIT. It adds 24 tokens to every session and 1,290 once invoked, about $0.0001 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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