resume-session

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

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/zhmxiaowo/opencode-simple/resume-session
Clone the repo
git clone --depth 1 https://github.com/zhmxiaowo/opencode-simple
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. 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 $0.00026 $0.01327
Opus 5 $0.00013 $0.00664
Sonnet 5 $0.00005 $0.00265
Haiku 4.5 $0.00003 $0.00133

Measured 2d ago against content hash f92fc2998cb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

.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. 2d 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 5mo ago), licensed MIT. It adds 26 tokens to every session and 1,327 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.