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 skills add orchestra-hq/orchestra-skills --skill prefect-data-passing-to-orchestragit clone --depth 1 https://github.com/orchestra-hq/orchestra-skillsWrote 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.
[](https://agentmods.dev/skills/orchestra-hq/orchestra-skills/prefect-data-passing-to-orchestra)<a href="https://agentmods.dev/skills/orchestra-hq/orchestra-skills/prefect-data-passing-to-orchestra"><img src="https://agentmods.dev/badge/skills/orchestra-hq/orchestra-skills/prefect-data-passing-to-orchestra/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.
<a href="https://agentmods.dev/skills/orchestra-hq/orchestra-skills/prefect-data-passing-to-orchestra"><img src="https://agentmods.dev/badge/skills/orchestra-hq/orchestra-skills/prefect-data-passing-to-orchestra.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00095 | $0.02201 |
| Opus 5 | $0.00048 | $0.01100 |
| Sonnet 5 | $0.00019 | $0.00440 |
| Haiku 4.5 | $0.00010 | $0.00220 |
Grade A, and why
prefect-data-passing-to-orchestra 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.
How it starts
The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
Prefect passes data between tasks implicitly via Python return values — a downstream task simply receives the upstream return value as an argument. Orchestra has no implicit data passing: inter-task values must be explicitly captured with the Orchestra SDK's set_output() — called on an instantiated OrchestraSDK client, not a bare imported function — in the upstream task, and referenced with a template expression in the downstream task. Large objects (DataFrames, files) cannot cross task boundaries at all and must be staged in external storage.
Parameter Mapping
| Prefect pattern | Orchestra equivalent | Notes |
|---|---|---|
result = task_a(); task_b(result) (small scalar/string) |
upstream: set_outputs: true + client.set_output('key', val); downstream: ${{ ORCHESTRA.PIPELINE_RUN_TASKS['task_a_id'].OUTPUTS['key'] }} |
|
result = task_a.submit(); task_b(result.result()) |
same as above | .submit() futures map 1-to-1 |
| Large DataFrame passed to next task | Stage in S3/Snowflake; pass only path/table name as output string | DataFrames cannot cross Orchestra task boundaries |
list_of_results = task.map(items) |
matrix: block on the task group |
See matrix example below |
| Prefect Artifact (observability only) | Drop — Artifacts with no downstream consumer have no Orchestra equivalent | |
| Prefect Artifact read by downstream step | Capture with client.set_output() instead; Artifacts are not queryable by other Orchestra tasks |
|
| Conditional branch driven by task return value | Upstream client.set_output('flag', bool_val) + downstream condition: '${{ ORCHESTRA.PIPELINE_RUN_TASKS[...].OUTPUTS["flag"] == true }}' |
Orchestra YAML Structure
Scalar output capture (Python task)
parameters:
command: 'python scripts/get_row_count.py'
python_version: '3.12'
set_outputs: true # required — without this, client.set_output() calls are silently ignored
Corresponding Python script — instantiate the OrchestraSDK client and call .set_output() on it; ORCHESTRA_API_KEY is auto-injected into every PYTHON_EXECUTE_SCRIPT task's environment, no connection/secret needed for this:
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.
- 12d ago First seen · 179 lines · 95 tokens per session scan A 52b836401f23
prefect-data-passing-to-orchestra is a skill published in the GitHub repository orchestra-hq/orchestra-skills (9 stars, last pushed 3d ago), licensed MIT. It adds 95 tokens to every session and 2,201 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.
Other skills, from other repositories
agent-platform-rag-engine-management
Manage and query Agent Platform RAG Engine Corpora and retrieve grounded contexts using the Google GenAI SDK. Use when listing RAG corpora or files, inspecting a corpus, retrieving contexts, or generating content grounded in a RAG corpus. Do not use for standard database queries (use SQL/Spanner skills), Google…
agent-platform-model-registry
Agent Platform Model Registry Management. Use when you need to upload, list, describe, update, or delete machine learning models (and their versions) in the Agent Platform Model Registry. Don't use for model training, model deployment to endpoints, or managing non-Agent Platform models.
foundry-config-setup
Resolve missing setup caused by a hardcoded Foundry project endpoint or model in a sample. Use when a sample fails because it uses a placeholder/hardcoded projectendpoint (for example "https://your-project.services.ai.azure.com") or a hardcoded model instead of reading them from the environment.
google-cloud-solution-agentic-analytics-spark-knowledge-catalog
Discovers requirements and generates guidance to design and deploy a governed, secure agentic-analytics solution for data that's distributed across Google Cloud, other cloud providers, or on-premises. Data that's outside Google Cloud (such as data from Databricks, Snowflake, Salesforce, SAP, or Oracle systems) is…
training-check
Interactively monitor training metrics from the current Codex session, periodically checking WandB or fallback logs for NaN, divergence, plateaus, and broken runs.
nemo-automodel-launcher-config
Configure NeMo AutoModel job launches for interactive runs, Slurm clusters, and SkyPilot cloud execution.