prefect-flow-builder
Prefect Flow Builder - Auto-activating skill for Data Pipelines. Triggers on: prefect flow builder, prefect flow builder Part of the Data Pipelines skill category.
36
3%
Does it follow best practices?
Impact
100%
1.78xAverage score across 3 eval scenarios
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./planned-skills/generated/11-data-pipelines/prefect-flow-builder/SKILL.mdQuality
Discovery
7%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This description is extremely weak across all dimensions. It reads as an auto-generated stub with no concrete actions, no meaningful trigger terms (the same phrase is duplicated), and no explicit guidance on when Claude should select this skill. It would be nearly indistinguishable from other data pipeline skills and provides no useful information for skill selection.
Suggestions
Add specific concrete actions the skill performs, e.g., 'Creates Prefect flows, defines tasks and dependencies, configures schedules, deploys flows to Prefect Cloud or server, and sets up retries and error handling.'
Add an explicit 'Use when...' clause with natural trigger terms, e.g., 'Use when the user asks about building Prefect flows, orchestrating data pipelines, scheduling ETL jobs with Prefect, or deploying workflows.'
Expand trigger terms to include natural variations users would say: 'Prefect', 'flow', 'task', 'ETL', 'data pipeline', 'orchestration', 'workflow', 'prefect deploy', 'prefect.yaml'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description provides no concrete actions whatsoever. It only names the tool ('Prefect Flow Builder') and a category ('Data Pipelines') without describing what it actually does—no verbs like 'creates', 'deploys', 'schedules', or 'monitors'. | 1 / 3 |
Completeness | The description fails to answer both 'what does this do' and 'when should Claude use it'. There is no explanation of capabilities and no explicit 'Use when...' clause—only a vague auto-activation mention and a repeated trigger phrase. | 1 / 3 |
Trigger Term Quality | The trigger terms are just 'prefect flow builder' repeated twice. There are no natural user keywords like 'data pipeline', 'ETL', 'workflow', 'orchestration', 'prefect deploy', 'task', or 'schedule' that users would commonly say. | 1 / 3 |
Distinctiveness Conflict Risk | The mention of 'Prefect' provides some specificity that distinguishes it from generic pipeline tools, but 'Data Pipelines' is broad enough to overlap with skills for Airflow, Luigi, Dagster, or other orchestration tools. The lack of specific actions makes it harder to distinguish. | 2 / 3 |
Total | 5 / 12 Passed |
Implementation
0%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is essentially a placeholder template with no substantive content about Prefect flow building. It contains no executable code, no concrete instructions, no workflow steps, and no references to detailed materials. It would provide Claude with zero useful information for actually helping users build Prefect flows.
Suggestions
Add concrete, executable Prefect flow examples using @flow and @task decorators, including a minimal working ETL pipeline.
Define a clear workflow sequence for building and deploying Prefect flows (e.g., define tasks → compose flow → test locally → deploy → monitor), with validation checkpoints at each stage.
Remove all meta-content about when the skill activates and example triggers—this is frontmatter-level information that wastes tokens in the body.
Add specific guidance on common Prefect patterns such as retries, caching, concurrency, error handling, and deployment configurations with copy-paste ready code.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is padded with generic filler that tells Claude nothing useful. Phrases like 'Provides step-by-step guidance' and 'Follows industry best practices' are vacuous. It explains trigger conditions and meta-information rather than providing any actual technical content about Prefect flows. | 1 / 3 |
Actionability | There is zero concrete guidance—no code, no commands, no API references, no examples of Prefect flow definitions, decorators, task configurations, or deployment patterns. The skill describes what it could do rather than instructing how to do anything. | 1 / 3 |
Workflow Clarity | No workflow steps are defined at all. There is no sequence of actions, no validation checkpoints, and no error handling guidance for building or deploying Prefect flows. | 1 / 3 |
Progressive Disclosure | The content is a monolithic block of generic text with no references to supporting files, no structured navigation, and no separation of overview from detailed content. There are no bundle files to reference either, but the body itself lacks any meaningful organizational structure. | 1 / 3 |
Total | 4 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
- Commit
3a2d27d
- Reviewed
Table of Contents
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