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Inspect graph changes over time and ontology version diffs in Semantica. Uses ContextGraph.state_at for point-in-time graph state and change_management.VersionManager for ontology versioning.

Quality

80%

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SecuritybySnyk

Passed

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tessl review fix ./plugins/skills/change/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

92%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 an exemplary lean skill: executable code per subcommand, a crisp disambiguation table, and prose reserved for non-obvious pitfalls. The only weakness is the versions section's placeholder variables, which keep the last code block from being directly runnable.

DimensionReasoningScore

Conciseness

The body is lean and code-first; the only prose is genuinely non-obvious domain gotchas ('load_from_file does not expand ~', 'a list of dicts (unhashable), so compare the id fields'), exactly what Claude could not infer. Every token earns its place.

5 / 5

Actionability

The graph-at and node-history blocks are fully executable with imports and gotcha workarounds, but the versions block uses undefined placeholders ('ontology', 'base_ontology', 'target_ontology') so it is not copy-paste ready. Not 5 for that minor gap; well above 3 since real executable code dominates.

4 / 5

Workflow Clarity

Each subcommand is an unambiguous single read-only action, and the opening table explicitly disambiguates which tool answers which question. No destructive or batch operations are involved, so the simple-skill exception applies and no validation checkpoints are required.

5 / 5

Progressive Disclosure

No bundle files exist, and nothing inlined here belongs in a separate file: the body is short, organized into one clear section per subcommand, and delegates richer temporal work to /semantica:temporal instead of duplicating it. Well-organized sections fully satisfy the no-external-references case.

5 / 5

Total

19

/

20

Passed

Description

58%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 states what the skill does with specific, API-backed capabilities, but it entirely lacks a 'when to use' trigger clause and leans on class-name jargon rather than natural user phrasing. Adding explicit trigger guidance and common synonyms would materially improve it.

Suggestions

Add a 'Use when...' clause, e.g. 'Use when the user asks what changed in the Semantica graph over time, wants a graph snapshot at a past date, or asks to diff ontology versions.'

Replace or supplement API class names ('ContextGraph.state_at', 'change_management.VersionManager') with natural trigger phrases such as 'graph history', 'snapshot', 'version diff', and 'what changed'.

Mention node-level history and ontology migration in the capability list so the description covers all three body sections.

DimensionReasoningScore

Specificity

Lists several concrete actions ('Inspect graph changes over time', 'ontology version diffs', 'point-in-time graph state', 'ontology versioning') backed by specific APIs. Not 5 because capabilities like node history and ontology migration are absent from the description; not 3 because it goes well beyond 1-2 actions.

4 / 5

Completeness

The 'what' is clearly stated (inspect graph changes, ontology version diffs), but there is no 'Use when...' clause or equivalent explicit trigger guidance, which caps completeness at 3 per the judging guidelines.

3 / 5

Trigger Term Quality

'changes over time', 'diffs', and 'version' are natural terms, but 'ContextGraph.state_at' and 'change_management.VersionManager' are API jargon, and common user phrasings like 'history', 'snapshot', or 'what changed' are missing. Anchor 3 (some relevant keywords, missing common variations) is the best fit.

3 / 5

Distinctiveness Conflict Risk

Scoped to Semantica with two explicitly distinguished mechanisms, giving a mostly distinct niche. Not 5 because it overlaps with the related /semantica:temporal skill, which also covers time-based graph inspection.

4 / 5

Total

14

/

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

semantica-agi/semantica

Path

plugins/skills/change/SKILL.md

Reviewed

Table of Contents

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