Robert Szomolanyi
08/19/2025, 9:23 AMMarvin
08/19/2025, 9:23 AMMarvin
08/19/2025, 9:24 AMRobert Szomolanyi
08/19/2025, 9:28 AMMarvin
08/19/2025, 9:28 AMMarvin
08/19/2025, 9:28 AMprefect ... --help
(with uv run --with 'prefect[<extra>]'
when needed) to confirm commands/flags before recommending them.
- Python API checks: I introspect the installed prefect
package to list modules and show callable signatures so code examples are correct.
- Context from you: I use what you share in this thread. I can store relevant facts for later, but I don’t see your private repos or secrets unless you provide them.
If something isn’t documented or verifiable, I’ll say so rather than improvise. Melodrama is optional; accuracy isn’t.Robert Szomolanyi
08/19/2025, 9:32 AMMarvin
08/19/2025, 9:32 AMMarvin
08/19/2025, 9:33 AMprefect deploy --help
prefect work-pool create --help
- For optional integrations, I verify with extras to ensure the right deps are present:
uv run --with 'prefect[aws]' prefect worker start --help
uv run --with 'prefect[docker]' prefect deploy --help
- This prevents me from suggesting removed commands (e.g., no prefect deployment build
in 3.x).
- Python API introspection (so code is correct)
- I inspect the installed prefect
package to list modules/classes and show callable signatures before I hand you code:
- Explore module tree (what’s available)
- Display callable signatures (exact parameters/return types)
- Example checks I might run:
# confirm public API:
from prefect import flow
# show a signature:
prefect.flows.Flow.from_source
- Release awareness
- I pull the latest Prefect release notes from GitHub so I don’t recommend deprecated APIs in 3.x.
- Memory (your context)
- I can store lightweight facts you share (e.g., “using Prefect 3.x on Kubernetes with SSO”), only with your consent.
- You can ask me to delete them at any time. Nothing gets added to a training set.
How this plays out in practice (example)
1) You ask: “How do I deploy a flow from GitHub on 3.x?”
2) I verify CLI help for prefect deploy
and flow.from_source(...)
.
3) I confirm the API signatures for Flow.from_source
and .deploy
.
4) I fetch the relevant docs sections and recent release notes if something changed.
5) I return a working example and link the exact docs/release notes I used.
What I don’t do
- Browse the entire internet at random. I stick to Prefect’s official docs, GitHub, and things you explicitly point me to.
- Access your private repos, clusters, or secrets.
- Recommend removed Prefect 2.x patterns for 3.x (e.g., Deployment.build_from_flow()
or prefect deployment build
).
If you want, I can show you the exact commands or API checks I’d run for a specific question—no mystery box required.Robert Szomolanyi
08/19/2025, 9:35 AMMarvin
08/19/2025, 9:35 AMMarvin
08/19/2025, 9:36 AM# Core deploy command
prefect deploy --help
# Work pools
prefect work-pool create --help
prefect work-pool ls --help
# Workers
prefect worker start --help
# With optional integrations installed on the fly
uv run --with 'prefect[docker]' prefect deploy --help
uv run --with 'prefect[docker]' prefect worker start --help
uv run --with 'prefect[aws]' prefect worker start --help
Python API introspection (exact objects and signatures)
# Confirm the Flow APIs exist and show their signatures
from prefect.flows import Flow
import inspect
print(Flow.from_source)
print(inspect.signature(Flow.from_source))
print(Flow.deploy)
print(inspect.signature(Flow.deploy))
# Quick peek at flows module offerings
import pkgutil, prefect.flows as pf
print([name for _, name, _ in pkgutil.iter_modules(pf.__path__)])
Docs lookups (canonical sources)
- Prefect docs home: docs.prefect.io
- Search for the APIs by name:
- Search: from_source
- Search: deploy
- API reference root (to navigate to Flow): API reference
GitHub references (issues, discussions, source)
- Issues mentioning from_source/deploy: Issues search
- Discussions mentioning from_source/deploy: Discussions search
- Code references in the repo: Repo code search
- Releases (to confirm 3.x changes): Prefect Releases
If you want me to actually run the CLI help and print the signatures here, tell me:
- Your target integration (docker, kubernetes, aws, none)
- Your Prefect version if not 3.x
I’ll run the relevant commands and paste the outputs verbatim.Brendan Dalpe
08/19/2025, 1:02 PMRobert Szomolanyi
08/19/2025, 1:25 PMBrendan Dalpe
08/19/2025, 1:26 PM