CtrlK
BlogDocsLog inGet started
Tessl Logo

testland/atlas-migrations

Authors and runs Atlas database schema migrations - declarative HCL or SQL schema definition with `atlas schema apply` for desired-state apply OR `atlas migrate diff` to generate versioned migrations against a dev DB; `atlas migrate apply` to deploy; `atlas migrate lint` to flag destructive / locking / data-loss patterns; `atlas migrate hash` to detect tampering. Supports PostgreSQL, MySQL, SQL Server, ClickHouse, SQLite, MariaDB, Snowflake, Oracle, Redshift, Spanner, CockroachDB, Databricks. Use when the user wants Terraform-style declarative DB schema management or modern SQL-first migration linting beyond Flyway / Liquibase.

68

Quality

86%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Low

Low-risk findings worth noting

Overview
Quality
Evals
Security
Files

Quality

Content

65%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A highly actionable, well-sequenced walkthrough with executable commands at every step and a useful anti-patterns/limitations section. It loses points for restating known concepts, lacking explicit validation feedback loops around destructive applies, and keeping all content inline with no bundle references.

Suggestions

Tighten conciseness by dropping the Atlas marketing quote and merging 'When to use' into the description, since both restate concepts already covered.

Add an explicit validation checkpoint before destructive applies — e.g., in Step 5, 'First run `atlas migrate lint --latest 1`; only proceed to `atlas migrate apply` when clean, else fix and re-lint' — to give a validate→fix→retry loop.

Split engine-specific or HCL-vs-SQL detail into a `references/` file (e.g. `references/engines.md`) and link to it from a short overview, enabling one-level-deep progressive disclosure.

DimensionReasoningScore

Conciseness

The body is mostly efficient — each step is concrete commands — but it restates concepts Claude already knows: the Atlas marketing quote ('language-independent tool... modern DevOps principles') and a 'When to use' section that overlaps the description, so it is not fully lean.

2 / 3

Actionability

Every step ships copy-paste-ready, executable bash/SQL/HCL/YAML (install, schema definition, schema apply, migrate diff/apply, lint, CI workflow), matching the 'fully executable; copy-paste ready' anchor.

3 / 3

Workflow Clarity

Nine steps are clearly sequenced, but destructive DB operations lack an explicit validate→fix→retry feedback loop — `atlas migrate apply` (Step 5) has no pre-apply checkpoint, and lint (Step 6) is a separate step rather than a gate before apply, so it caps at 2 per the destructive-operations note.

2 / 3

Progressive Disclosure

The skill is well-sectioned (Overview, Steps 1–9, Anti-patterns, Limitations, References) but is a single ~200-line monolithic file with no bundle files and no one-level-deep references; per-engine or HCL-vs-SQL detail that could be split is inline, matching the 'content that should be separate is inline' anchor.

2 / 3

Total

9

/

12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, third-person description that names concrete commands, supported engines, explicit use-when triggers, and a distinct niche against Flyway/Liquibase. Its only weakness is verbosity — listing all 14 engines and every command in one run-on sentence — but this does not lower any anchored dimension.

DimensionReasoningScore

Specificity

Lists multiple concrete actions: `atlas schema apply`, `atlas migrate diff`, `atlas migrate apply`, `atlas migrate lint`, and `atlas migrate hash`, each tied to a specific outcome — matching the 'lists multiple specific concrete actions' anchor.

3 / 3

Completeness

Explicitly answers both what (authors/runs migrations across the listed engines and commands) and when ('Use when the user wants Terraform-style declarative DB schema management or modern SQL-first migration linting beyond Flyway / Liquibase.').

3 / 3

Trigger Term Quality

Natural terms a user would say are present — 'database schema migrations', 'Terraform-style declarative DB schema management', 'migration linting beyond Flyway / Liquibase' — giving good coverage rather than pure jargon.

3 / 3

Distinctiveness Conflict Risk

Targets a clear niche — Atlas schema migrations — and explicitly contrasts against Flyway/Liquibase, so it is unlikely to trigger for the wrong skill.

3 / 3

Total

12

/

12

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Reviewed

Table of Contents