CtrlK
BlogDocsLog inGet started
Tessl Logo

subsystem-summary-of-database

read this skill for a token-efficient summary of the database subsystem

45

Quality

47%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./.claude/skills/subsystem-summary-of-database/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

57%Weight 40%Scale 1-5

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

The body is a dense, well-organized technical reference that assumes competence and avoids padding, but it is purely descriptive with no executable guidance, lacks validation checkpoints around its destructive/batch operations, and is a long monolithic file with no progressive-disclosure split.

Suggestions

Add explicit validation/verification checkpoints to the destructive and batch flows (e.g., verify row-count match after populateMiscDatabase, confirm schema version persisted after each migration step) to lift workflow clarity above the batch-operation cap.

Move the full function and constants tables into a references/ file (e.g., references/api.md) and keep SKILL.md as a concise overview with one-level-deep links, improving progressive disclosure and token efficiency.

Tighten the body toward the promised 'token-efficient summary' by trimming exhaustive member/signature listings to the subset needed for navigation.

DimensionReasoningScore

Conciseness

The body assumes Claude's competence (no explanations of SOCI, WAL, or SCP basics) and packs reference facts efficiently, but at ~226 lines it is longer than a 'token-efficient summary' implies and some tables could be trimmed, fitting 'efficient; minor instances that could be trimmed' above the lean 5.

4 / 5

Actionability

It gives concrete reference detail (function signatures, member lists, behavior) but is descriptive rather than instructive — there are no executable steps or commands — which lands at 'some concrete guidance but incomplete' rather than the mostly-executable 4.

3 / 5

Workflow Clarity

Numbered data-flow sequences (startup, migration, worker access) are clearly ordered, but they describe destructive/batch operations (table drops, batch deletes, initialize()) without validation checkpoints, so the batch-operation cap holds this at 3.

3 / 5

Progressive Disclosure

The file is well-sectioned with clear headers but is a single ~226-line monolith with no bundle references, and detailed API/constants tables that could live in separate files are inlined, matching 'some structure but could be better organized' rather than the well-split 4.

3 / 5

Total

13

/

20

Passed

Description

37%Weight 40%Scale 1-5

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

The description clearly identifies the target domain but uses a single generic action and omits an explicit 'Use when...' trigger clause, leaving the activation context only weakly implied. Trigger keywords are sparse and lack the natural phrasings a user would say.

Suggestions

Add an explicit trigger clause, e.g., 'Use when the user asks about the database subsystem, persistence layer, schema migration, or connection pooling in stellar-core.'

Replace the generic action 'summary' with 2-3 concrete capabilities the skill delivers, such as 'summarizes classes, schema migrations, and connection-pooling behavior'.

Include natural synonyms a user might say ('database', 'SOCI', 'SQLite/PostgreSQL backend') to improve trigger-term coverage.

DimensionReasoningScore

Specificity

The phrase "summary of the database subsystem" names the domain but offers only one generic action (summarize); it does not list concrete capabilities, matching the 'names the domain but actions are minimal or generic' anchor rather than the 1-2 concrete actions needed for a 3.

2 / 5

Completeness

It states a clear 'what' (token-efficient summary of the database subsystem) but provides no explicit 'Use when...' trigger, so 'when' is only weakly implied; the missing-trigger-guidance rule caps this at 3.

3 / 5

Trigger Term Quality

"database subsystem" and "summary" are one or two generic keywords; the description lacks the natural trigger phrases a user would actually say (e.g., 'database', 'persistence layer', 'schema migration'), fitting the 'one or two generic keywords; missing the natural phrases' anchor.

2 / 5

Distinctiveness Conflict Risk

"database subsystem" is somewhat specific but the broad term 'database' creates overlap risk with other database-related skills, matching the 'somewhat specific but could still overlap' anchor rather than the mostly-distinct 4.

3 / 5

Total

10

/

20

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.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
stellar/stellar-core
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.