CtrlK
BlogDocsLog inGet started
Tessl Logo

troubleshooting-efs

Diagnoses and resolves Amazon EFS issues including mount failures, NFS timeouts, permission errors, throughput problems, and burst credit exhaustion. Use when the user has an EFS file system that is not mounting, returning errors, performing slowly, or showing access denied.

71

Quality

87%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Medium

Suggest reviewing before use

SKILL.md
Quality
Evals
Security

Quality

Content

75%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 efficient, highly actionable runbook with a clear classification-first workflow and verification steps before each fix. It loses points for duplicated notes, a direction-only Category E, a numbering glitch in Category B, and the absence of any internal progressive-disclosure structure for its length.

Suggestions

Add executable commands to Category E (e.g., aws kms describe-key --key-id KEY and key-policy checks) so it matches the command-driven style of the other categories.

Deduplicate the IAM-authorization note (stated in both Category C and Security Considerations) and the security-group-timeout guidance (Category B intro and Troubleshooting), keeping one canonical location with a cross-reference.

Fix the Category B step numbering (two consecutive "1." items) and consider splitting per-category detail into reference files so SKILL.md stays a concise overview with one-level-deep references.

DimensionReasoningScore

Conciseness

The body is lean and command-dense, but the IAM-authorization note appears nearly verbatim in both Category C ("IAM authorization is only enforced when a file system policy exists") and Security Considerations, and the security-group-timeout cause is stated twice (Category B intro and the Troubleshooting section). This fits the 4 anchor (efficient with minor trimmable redundancy) rather than the every-token-earns-its-place anchor at 5.

4 / 5

Actionability

Most sections give copy-paste-ready commands ("aws efs describe-mount-targets --file-system-id fs-ID", "nc -zv fs-ID.efs.REGION.amazonaws.com 2049", package installs), but Category E is direction-only ("Verify key is enabled in KMS console" with no CLI) and the IAM checks lack a concrete policy example. Minor gaps place it at 4 rather than fully-executable 5.

4 / 5

Workflow Clarity

The symptom-to-category table followed by verify-then-fix sequences (check both security-group directions, nc connectivity test, check BurstCreditBalance before switching throughput mode) and a "wait for user confirmation before executing" checkpoint give a clear sequence with most checkpoints. It falls short of 5 because there are no explicit fix-and-recheck feedback loops and Category B's numbered list restarts at "1." twice, making the sequence slightly incoherent; it is not capped at 3 since each mutating command is preceded by a verification step.

4 / 5

Progressive Disclosure

Sections are well-organized with a navigable classification table and authoritative external AWS doc links, but ~165 lines of dense per-category operational detail are inlined in a single file with no internal reference files, so content is not split across one-level-deep references. Good structure with minor organization gaps fits 4; the under-50-lines exception for scoring 5 does not apply.

4 / 5

Total

16

/

20

Passed

Description

100%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.

A strong description: third-person, concise, comprehensive in coverage of EFS failure modes, with an explicit "Use when" clause containing concrete natural-language triggers. It closely matches the rubric's good overall examples.

DimensionReasoningScore

Specificity

"Diagnoses and resolves Amazon EFS issues including mount failures, NFS timeouts, permission errors, throughput problems, and burst credit exhaustion" names concrete actions applied to a comprehensive list of specific failure classes, matching the comprehensive-coverage anchor rather than the minor-gaps anchor below it.

5 / 5

Completeness

It explicitly answers "what" ("Diagnoses and resolves Amazon EFS issues including...") and "when" ("Use when the user has an EFS file system that is not mounting, returning errors, performing slowly, or showing access denied") with concrete trigger conditions, mirroring the top anchor's structure.

5 / 5

Trigger Term Quality

"not mounting, returning errors, performing slowly, or showing access denied" captures the natural phrases users actually report, complemented by technical terms like "NFS timeouts" and "burst credit exhaustion"; no common user phrasing for EFS problems is missing.

5 / 5

Distinctiveness Conflict Risk

"Amazon EFS file system" with EFS-specific triggers (mount failures, NFS timeouts, burst credit exhaustion) carves out a clear niche with minimal overlap risk against other skills.

5 / 5

Total

20

/

20

Passed

Validation

93%

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

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
aws/agent-toolkit-for-aws
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.