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CASDA-MCP: Skill for Cursor

.cursor/skills/casda-stage-and-download/SKILL.md

casda-stage-and-download is a skill for Cursor from jbwod/CASDA-MCP. It costs 43 tokens per session (614 once invoked), scanned A, original, BSD-3-Clause.

A workflow for staging and downloading selected files from CASDA, an astronomy data archive, after access and job status are checked.

In plain words
What is it for?
Use it to stage full files, cutouts, or spectra, check job progress, download ready results, and verify their size or checksum.
Why use it?
It adds safeguards around authenticated archive processing, background jobs, local download locations, and file verification.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is jbwod/CASDA-MCP's own configuration. It tells Cursor how to work on CASDA-MCP 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 CASDA-MCP configures →

not rated 0repo 1mo ago A scan 43 tokens original BSD-3-Clause
View source ↗ jbwod/CASDA-MCP
Reuse

Borrowing it

Nothing to install: this file belongs to jbwod/CASDA-MCP. 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/jbwod/CASDA-MCP/master/.cursor/skills/casda-stage-and-download/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jbwod/CASDA-MCP

Made for: Cursor.

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README.md
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Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 614 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 $0.00043 $0.00614
Opus 5 $0.00022 $0.00307
Sonnet 5 $0.00009 $0.00123
Haiku 4.5 $0.00004 $0.00061

Measured 12d ago against content hash d157ab7114e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

casda-stage-and-download 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 12d 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.

.cursor/skills/casda-stage-and-download/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CASDA stage and download

Prerequisites

  • OPAL credentials configured (CASDA_USERNAME, CASDA_PASSWORD).
  • CASDA_ENABLE_STAGING=true for WEB full-file, Pawsey, cutout, and spectrum jobs; CASDA_ENABLE_DOWNLOADS=true and an absolute CASDA_DOWNLOAD_DIR for downloads.
  • Inspect sizes and access state with casda_get_product (optionally casda_get_datalink) before submitting jobs.

Full-file workflow (WEB download)

  1. Call casda_stage_products with explicit product_ids and a stable idempotency_key when retrying the same selection.
  2. Later call casda_get_staging_status or casda_get_data_job once with the returned request_id. Do not assume background polling.
  3. Download only when the status shows products ready for download.
  4. Call casda_download_product for one product at a time, or casda_download_job_results for selected job results. Prefer checksum verification. Paths must stay under CASDA_DOWNLOAD_DIR.
  5. Check returned byte length and checksum fields; optionally casda_verify_file.

Pawsey staging

  1. Call casda_stage_pawsey with the same staging flag/credentials when the user wants Pawsey network pull (DataLink pawsey_async_service).
  2. Surface every human_gate_warnings entry: Pawsey HPC account required; licence/account confirmation is a human DAP action; this MCP never auto-accepts terms; results are Pawsey-network restricted.
  3. Monitor with casda_get_data_job. Do not claim WEB download parity for Pawsey jobs.

Cutout and spectrum jobs

  1. Call casda_create_cutout with CIRCLE / POLYGON / BAND / CHANNEL / POL / COORD as supplied, or casda_create_spectrum for integrated spectra.
  2. Monitor with casda_get_data_job and inspect casda_get_data_job_results when needed.
  3. Abort or delete only with explicit user intent (casda_abort_data_job / casda_delete_data_job).
  4. Download ready results with casda_download_product or casda_download_job_results.

Safety

  • Never auto-retry job create/start after a network failure without user intent and a clear idempotency policy.
  • Do not overwrite existing destinations unless the administrator enabled overwrite.
  • Do not scrape the DAP cutout UI or invent SODA endpoints outside DataLink descriptors.

Read the full file on GitHub · 47 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. 12d ago First seen · 47 lines · 43 tokens per session scan A d157ab7114e9

Subscribe to this mod's changes

casda-stage-and-download is a skill published in the GitHub repository jbwod/CASDA-MCP (0 stars, last pushed 1mo ago), licensed BSD-3-Clause. It adds 43 tokens to every session and 614 once invoked, about $0.0002 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.

ResearchScientificcasdamcp-server
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