preview

preview is a command for coding agents from sofumel/claude-handoff-revive. It costs 27 tokens per session (277 once invoked), scanned A, original, MIT.

A read-only command that previews the work handoff the next session will read, without changing it.

In plain words
What is it for?
Use it to decide whether the handoff is clear enough to resume work or needs to be refreshed.
Why use it?
It lets you check the handoff's size, validation, freshness, and next action before relying on it.

Command

Part of the handoff-revive plugin — 1 skill, 11 commands, 5 hooks shipped together

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 commands/sofumel/claude-handoff-revive/preview
Clone the repo
git clone --depth 1 https://github.com/sofumel/claude-handoff-revive

Or install handoff-revive, the plugin that ships this one along with the rest of its 1 skill, 11 commands, 5 hooks.

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 preview

README.md
[![agentmods](https://agentmods.dev/badge/commands/sofumel/claude-handoff-revive/preview.svg)](https://agentmods.dev/commands/sofumel/claude-handoff-revive/preview)
Your own site
<a href="https://agentmods.dev/commands/sofumel/claude-handoff-revive/preview"><img src="https://agentmods.dev/badge/commands/sofumel/claude-handoff-revive/preview.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 277 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 $0.00027 $0.00277
Opus 5 $0.00014 $0.00138
Sonnet 5 $0.00005 $0.00055
Haiku 4.5 $0.00003 $0.00028

Measured 3d ago against content hash 73a3debb2f62, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

preview 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 3d 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.

plugins/handoff-revive/commands/preview.md · 21 lines

What it actually says

Run the preview-handoff script and show the result. This is a read-only dry-run: it must not modify the handoff.

  • Linux/macOS/WSL/Git-Bash:
    bash "${CLAUDE_PLUGIN_ROOT:-.claude}/skills/handoff-revive/scripts/preview-handoff.sh"
    
  • Windows PowerShell:
    $r = if ($env:CLAUDE_PLUGIN_ROOT) { $env:CLAUDE_PLUGIN_ROOT } else { ".claude" }; powershell -ExecutionPolicy Bypass -File "$r/skills/handoff-revive/scripts/preview-handoff.ps1"
    

Then, in the user's language (read .claude/handoff/lang):

  1. Show the summary block (size / token estimate / validation / freshness) as-is.
  2. Summarize in 1–2 sentences whether this handoff is good enough to resume from cold: does next_action say exactly what to do, and are there warnings to address?
  3. If validation is INVALID or freshness warns, suggest /handoff-revive:save to refresh — but do not save anything yourself in this command.
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. 3d ago First seen · 21 lines · 27 tokens per session scan A 73a3debb2f62

Subscribe to this mod's changes

preview is a command published in the GitHub repository sofumel/claude-handoff-revive (6 stars, last pushed 2mo ago), licensed MIT. It adds 27 tokens to every session and 277 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.