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.
npx agentmods add commands/thrashr888/agentkernel/volumesgit clone --depth 1 https://github.com/thrashr888/agentkernelWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00701 |
| Opus 5 | $0.00000 | $0.00351 |
| Sonnet 5 | $0.00000 | $0.00140 |
| Haiku 4.5 | $0.00000 | $0.00070 |
Grade A, and why
volumes 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.
How it starts
The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agentkernel volume
Manage persistent volumes that survive sandbox restarts. Volumes are stored in ~/.agentkernel/volumes/.
Subcommands
| Command | Description |
|---|---|
volume create <slug> [--size SIZE] |
Create a new volume |
volume list |
List all volumes |
volume info <slug> |
Show volume details |
volume delete <slug> [--force] |
Delete a volume |
Examples
Create a volume
# Create a volume with default settings
agentkernel volume create mydata
# Create with a size hint (for display only)
agentkernel volume create cache --size 2GB
Size accepts: B, KB, MB, GB suffixes (e.g., 512MB, 2GB).
List volumes
$ agentkernel volume list
SLUG SIZE CREATED MOUNTS
mydata 1.2MB 2025-01-20 10:30:00 3
cache 0B 2025-01-20 11:00:00 0
Use a volume with a sandbox
Mount volumes when creating a sandbox with --volume or -v:
# Mount mydata volume at /data
agentkernel sandbox create dev --volume mydata:/data
# Mount read-only
agentkernel sandbox create dev --volume mydata:/data:ro
# Multiple volumes
agentkernel sandbox create dev \
--volume mydata:/data \
--volume cache:/cache
The volume must exist before mounting. Create it first:
agentkernel volume create mydata
agentkernel sandbox create dev --volume mydata:/data
agentkernel sandbox start dev
agentkernel exec dev -- ls /data
Volume info
$ agentkernel volume info mydata
Slug: mydata
Size: 1.2MB
Created: 2025-01-20 10:30:00
Last Used: 2025-01-20 14:00:00
Mounts: 3
Path: /Users/user/.agentkernel/volumes/mydata
Delete a volume
# Delete (will prompt if in use)
agentkernel volume delete mydata
# Force delete without prompt
agentkernel volume delete mydata --force
Volume Format
Volume mount specs follow the format: slug:/container/path[:ro]
slug- Volume identifier (alphanumeric, hyphens, underscores)/container/path- Mount point inside the sandbox:ro- Optional read-only flag
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.
- 2d ago First seen · 107 lines · 0 tokens per session scan A 345cfa8ea48a
volumes is a command published in the GitHub repository thrashr888/agentkernel (58 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 701 tokens. 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 2026-08-30.
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