exasol-bucketfs

exasol-bucketfs is a skill for Claude Code from exasol-labs/exasol-agent-skills. It costs 95 tokens per session (1,002 once invoked), scanned A, original, MIT.

A guide for managing files in Exasol BucketFS, a distributed file system whose contents are replicated across the database cluster. It uses the exapump command-line tool.

In plain words
What is it for?
Use it to list, upload, download, or delete files and directories, configure BucketFS locations, and place files where Exasol user-defined functions can access them.
Why use it?
It explains how to handle shared files safely across cluster nodes and highlights limits such as no transactions and separate backup needs.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the exasol plugin — 18 skills, 2 commands shipped together

Good fit Use it to list, upload, download, or delete files and directories, configure BucketFS locations, and place files where Exasol user-defined functions can access them.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/exasol-labs/exasol-agent-skills/exasol-bucketfs
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.

Any agent
npx skills add exasol-labs/exasol-agent-skills --skill exasol-bucketfs
Clone the repo
git clone --depth 1 https://github.com/exasol-labs/exasol-agent-skills

Made for: Claude Code.

Or install exasol, the plugin that ships this one along with the rest of its 18 skills, 2 commands.

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 exasol-bucketfs

README.md
[![agentmods](https://agentmods.dev/badge/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs/github.svg)](https://agentmods.dev/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs)
Your own site
<a href="https://agentmods.dev/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs"><img src="https://agentmods.dev/badge/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs/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 exasol-bucketfs

Your own site · 80×15
<a href="https://agentmods.dev/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs"><img src="https://agentmods.dev/badge/skills/exasol-labs/exasol-agent-skills/exasol-bucketfs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,002 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 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 5.1 $0.00095 $0.01002
Opus 5 $0.00048 $0.00501
Sonnet 5 $0.00019 $0.00200
Haiku 4.5 $0.00010 $0.00100

Measured 8d ago against content hash 9a376e86b7b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

exasol-bucketfs 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 8d 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/exasol/skills/exasol-bucketfs/SKILL.md · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Exasol BucketFS Skill

BucketFS is Exasol's synchronous distributed file system: whatever is written to a bucket is replicated to every cluster node and mounted read-only inside UDFs at /buckets/<service>/<bucket>/<path>. Replication takes time, and recognised archives are extracted on top of it, so a fresh upload becomes usable only once synchronisation finishes. This skill covers moving files in and out of BucketFS and referencing them from scripts.

Routing Algorithm

Choose the narrowest matching route. If several apply, load all matching references before answering.

  1. Run a BucketFS operation — list, upload, download, delete, or configure the connection

    • Trigger phrases: exapump bucketfs, ls, cp, rm, upload, download, delete, --bfs-host, --bfs-bucket, bfs_write_password, config.toml, exapump profile add
    • Load: references/exapump-bucketfs-cli.md
  2. Stage a file for a UDF or SLC — JARs, pickled models, containers, and the SQL that points at them

    • Trigger phrases: upload jar, %jar, upload model, load model in UDF, upload SLC, activate container
    • Load: references/bucketfs-udf-usage.md
  3. Understand BucketFS itself — services, buckets, path forms, replication, durability

    • Trigger phrases: what is BucketFS, bfsdefault, service, bucket structure, replication, backup, atomic write, size limit
    • Load: references/bucketfs-concepts.md

An upload for a UDF usually needs routes 1 and 2 together: the command form comes from the CLI reference, the path spelling in the SQL from the usage reference.

Step 0: Establish Connection

Ensure a working exapump profile — BucketFS uses the profile's bfs_* fields — before running any command:

  1. If the user names a profile, test it with exapump bucketfs ls --profile <name>; always place --profile after the subcommand. Otherwise test the default profile with exapump bucketfs ls.
  2. On success, proceed — and keep the same --profile <name> after the subcommand on every later command, such as exapump bucketfs cp --profile <name> <local-file> <bucket-path>.
  3. On failure, run exapump profile list to see which profiles exist.
  4. If profiles exist, present them and ask which to use, then inspect that one with exapump profile show <name> — it masks credentials — to confirm the required fields are set. Never read, cat, or print ~/.exapump/config.toml; it stores credentials in clear text. If a credential value does appear in any command output, do not repeat it in the conversation.
  5. If no usable profile exists, have the user create one locally with exapump profile add <name> (omit --password and exapump prompts on a hidden line) or exapump profile init, then retry step 1. Never ask the user to paste a password into the conversation, and never pass one as a command-line argument.

Read the full file on GitHub · 62 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago Changed · -141 lines · +46 tokens per session 9a376e86b7b0
  2. 12d ago First seen · 203 lines · 49 tokens per session scan A c105649a8804

Subscribe to this mod's changes

exasol-bucketfs is a skill published in the GitHub repository exasol-labs/exasol-agent-skills (10 stars, last pushed 8d ago), licensed MIT. It adds 95 tokens to every session and 1,002 once invoked, about $0.0005 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.

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