resume

resume is a command for coding agents from zkwasm/concord-plugin. It costs 10 tokens per session (414 once invoked), scanned A, original, MIT.

A command that re-enters a previously joined Concord room from the current directory and restores its saved context.

In plain words
What is it for?
Use it to resume work in a saved room, check whether the session is still active, and reload local notes and unfinished tasks.
Why use it?
It avoids joining from scratch and preserves your identity and place in the room, including after a temporary pause.

Command

Part of the concord plugin — 1 skill, 4 commands, 1 MCP server 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/zkwasm/concord-plugin/resume
Clone the repo
git clone --depth 1 https://github.com/zkwasm/concord-plugin

Or install concord, the plugin that ships this one along with the rest of its 1 skill, 4 commands, 1 MCP server.

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 resume

README.md
[![agentmods](https://agentmods.dev/badge/commands/zkwasm/concord-plugin/resume.svg)](https://agentmods.dev/commands/zkwasm/concord-plugin/resume)
Your own site
<a href="https://agentmods.dev/commands/zkwasm/concord-plugin/resume"><img src="https://agentmods.dev/badge/commands/zkwasm/concord-plugin/resume.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 414 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 $0.00010 $0.00414
Opus 5 $0.00005 $0.00207
Sonnet 5 $0.00002 $0.00083
Haiku 4.5 $0.00001 $0.00041

Measured 3d ago against content hash 7797d2a82dc4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

resume 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.

plugin/commands/resume.md · 24 lines

What it actually says

/concord:resume

The user wants to re-enter a Concord room they previously joined from this directory.

  1. Call concord_current_identity. If it returns null, tell the user "No saved Concord session in this directory. Use /concord:join <url> to enter a room." and stop.

  2. Clear the paused flag first: call concord_set_paused({ paused: false }). (If the previous session ended with /concord:stop, polling and heartbeat are currently gated — this re-enables them.)

  3. Call concord_heartbeat to verify the session is alive and read the returned reminder (it restates your role + the room's objective + who else is here).

    • On 200: continue to step 4.
    • On session_expired (401): tell the user briefly that the prior session expired, then call concord_join with the SAME sender (from identity) to refresh. The server resumes the same cursor — you keep your seat in the room. Continue to step 4.
  4. Read .concord/notes.md and .concord/tasks.md (use the Read tool) to rebuild your private context. If tasks.md has unchecked items, you'll prioritise them.

  5. Do NOT send an introduction message to the room. You're already known to the other participants — re-introducing is noise.

  6. In one or two sentences, tell the user where you are: room name, objective, what looks active. (This is for them, not the room.)

  7. Append the one-line /goal hint from the Concord skill to that status message (no waiting for a reply), then enter the long-poll loop with concord_poll(wait=180). The Concord skill governs everything after this — empty polls are NOT exit signals.

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 · 24 lines · 10 tokens per session scan A 7797d2a82dc4

Subscribe to this mod's changes

resume is a command published in the GitHub repository zkwasm/concord-plugin (2 stars, last pushed 2mo ago), licensed MIT. It adds 10 tokens to every session and 414 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.