opencode-simple: Command for Claude Code

.opencode/commands/resume-session.md

resume-session is a command for Claude Code, OpenCode from zhmxiaowo/opencode-simple. It costs 26 tokens per session (1,327 once invoked), scanned A, a copy of resume-session, MIT.

A command for loading a saved Claude Code session and continuing with its previous context.

In plain words
What is it for?
Use it to resume the latest saved session, a session from a specific date, or a session file at a given path.
Why use it?
It avoids manually reconstructing what was being worked on after a session ends or context is lost.

Command for Claude CodeOpenCode

Written for OpenCode and Claude Code: installed under .opencode/, but also a Claude Code command (commands/*.md). Also seen: reads .claude/ paths.

This is zhmxiaowo/opencode-simple's own configuration. It tells Claude Code and OpenCode how to work on opencode-simple itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything opencode-simple configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/you/.claude/sessions/2024-01-15-abc123de-session.tmp.

Reuse

Borrowing it

Nothing to install: this file belongs to zhmxiaowo/opencode-simple. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/zhmxiaowo/opencode-simple/main/.opencode/commands/resume-session.md
Clone the repo
git clone --depth 1 https://github.com/zhmxiaowo/opencode-simple

Made for: Claude Code, OpenCode.

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.

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README.md
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Your own site
<a href="https://agentmods.dev/commands/zhmxiaowo/opencode-simple/resume-session"><img src="https://agentmods.dev/badge/commands/zhmxiaowo/opencode-simple/resume-session/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 resume-session

Your own site · 80×15
<a href="https://agentmods.dev/commands/zhmxiaowo/opencode-simple/resume-session"><img src="https://agentmods.dev/badge/commands/zhmxiaowo/opencode-simple/resume-session.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,327 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 94% copy Near-identical to another mod 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 $0.00026 $0.01327
Opus 5.5 $0.00010 $0.00531
Sonnet 5.5 $0.00005 $0.00265
Haiku 4.5 $0.00003 $0.00133

Measured 1mo ago against content hash f92fc2998cb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

resume-session 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 1mo 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

This is a copy

94% identical to resume-session — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.opencode/commands/resume-session.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Resume Session Command

Load the last saved session state and orient fully before doing any work. This command is the counterpart to /save-session.

When to Use

  • Starting a new session to continue work from a previous day
  • After starting a fresh session due to context limits
  • When handing off a session file from another source (just provide the file path)
  • Any time you have a session file and want Claude to fully absorb it before proceeding

Usage

/resume-session                                                      # loads most recent file in ~/.claude/sessions/
/resume-session 2024-01-15                                           # loads most recent session for that date
/resume-session ~/.claude/sessions/2024-01-15-session.tmp           # loads a specific legacy-format file
/resume-session ~/.claude/sessions/2024-01-15-abc123de-session.tmp  # loads a current short-id session file

Process

Step 1: Find the session file

If no argument provided:

  1. Check ~/.claude/sessions/
  2. Pick the most recently modified *-session.tmp file
  3. If the folder does not exist or has no matching files, tell the user:
    No session files found in ~/.claude/sessions/
    Run /save-session at the end of a session to create one.
    
    Then stop.

If an argument is provided:

  • If it looks like a date (YYYY-MM-DD), search ~/.claude/sessions/ for files matching YYYY-MM-DD-session.tmp (legacy format) or YYYY-MM-DD-<shortid>-session.tmp (current format) and load the most recently modified variant for that date
  • If it looks like a file path, read that file directly
  • If not found, report clearly and stop

Step 2: Read the entire session file

Read the complete file. Do not summarize yet.

Step 3: Confirm understanding

Respond with a structured briefing in this exact format:

SESSION LOADED: [actual resolved path to the file]
════════════════════════════════════════════════

PROJECT: [project name / topic from file]

WHAT WE'RE BUILDING:
[2-3 sentence summary in your own words]

CURRENT STATE:
✅ Working: [count] items confirmed
🔄 In Progress: [list files that are in progress]
🗒️ Not Started: [list planned but untouched]

WHAT NOT TO RETRY:
[list every failed approach with its reason — this is critical]

OPEN QUESTIONS / BLOCKERS:
[list any blockers or unanswered questions]

NEXT STEP:
[exact next step if defined in the file]
[if not defined: "No next step defined — recommend reviewing 'What Has NOT Been Tried Yet' together before starting"]

════════════════════════════════════════════════
Ready to continue. What would you like to do?

Read the full file on GitHub · 156 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. 1mo ago First seen · 156 lines · 26 tokens per session scan A f92fc2998cb1

Subscribe to this mod's changes

resume-session is a command published in the GitHub repository zhmxiaowo/opencode-simple (2 stars, last pushed 7mo ago), licensed MIT. It adds 26 tokens to every session and 1,327 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 94% identical to resume-session, differing in 7 lines, and is treated as a copy.