Name: tinypng
Rating: 51.2 (1 reviews)
Author: membranedev

tinypng

TinyPNG integration. Manage data, records, and automate workflows. Use when the user wants to interact with TinyPNG data.

Quality

56%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

Securityby

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./skills/tinypng/SKILL.md

Quality

Content

67%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 content is a solid, mostly-executable Membrane CLI reference with a particularly well-structured connection workflow including polling and state feedback. Its main weaknesses are mild padding (empty sections, redundant commands) and the absence of a concrete end-to-end TinyPNG image-compression example.

Suggestions

Remove the empty 'TinyPNG Overview' section and the filler line 'Use action names and parameters as needed' to tighten token efficiency.

Add one concrete end-to-end example showing a real TinyPNG action invocation (e.g. compressing an image) with actual parameters, instead of only the generic discovery/run commands.

Drop the 'Popular actions' section or fold it into 'Searching for actions' to eliminate the restated command and reduce redundancy.

Dimension	Reasoning	Score
Conciseness	The body is mostly actionable CLI content, but includes filler such as the empty 'TinyPNG Overview' (just '- Image / - Optimization'), 'Use action names and parameters as needed', an auth-plumbing marketing line, and a 'Popular actions' section that restates the prior section's command.	3 / 5
Actionability	It provides concrete, copy-paste-ready commands for install, login, connection ensure, action list/run, and proxy requests with a flags table, with only minor gaps such as no concrete TinyPNG-specific action example with real parameters.	4 / 5
Workflow Clarity	The connection setup is a well-sequenced state machine with explicit checkpoints and feedback loops (poll until READY, handle CLIENT_ACTION_REQUIRED, check the error field); the end-to-end image-compression task itself is not sequenced with specific actions, which is the minor gap.	4 / 5
Progressive Disclosure	No bundle files exist; the single SKILL.md is well-sectioned with clear headers and no nested references, with only minor organization gaps like the empty Overview section and the redundant Popular actions block.	4 / 5
	Total	15 / 20 Passed

Description

45%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 correctly identifies the TinyPNG niche but leans heavily on generic Membrane template language ('Manage data, records, and automate workflows') that neither describes what TinyPNG actually does nor supplies natural user trigger phrases. Both a what and a when clause exist, but both are weak.

Suggestions

Replace the generic 'Manage data, records, and automate workflows' with concrete TinyPNG actions, e.g. 'Compress and optimize PNG and JPEG images to reduce file size'.

Rewrite the trigger clause to use natural phrases a user would say, e.g. 'Use when the user wants to compress, optimize, or reduce the file size of PNG or JPEG images.'

Drop the inaccurate 'data/records' framing so the what-clause reflects TinyPNG's actual image-compression purpose and improves distinctiveness from sibling Membrane skills.

Dimension	Reasoning	Score
Specificity	The description names the TinyPNG domain, but the listed actions — 'Manage data, records, and automate workflows' — are generic Membrane template boilerplate rather than concrete TinyPNG actions like compressing or optimizing images.	2 / 5
Completeness	Both a what-clause and a when-clause are present, but the 'what' is vague and misleading (managing data/records is not what an image-compression service does), keeping it below the both-present anchor.	3 / 5
Trigger Term Quality	It includes the relevant 'TinyPNG' keyword, but misses the natural phrases users would actually say ('compress images', 'optimize PNG', 'reduce file size'); the trigger 'interact with TinyPNG data' is itself unnatural.	3 / 5
Distinctiveness Conflict Risk	Distinctiveness rests entirely on the 'TinyPNG' brand name; the remaining wording is a template shared across the whole Membrane skill family, creating real overlap risk with sibling skills.	3 / 5
	Total	11 / 20 Passed

Validation

93%

Warnings & errors only

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

Criteria	Description	Result
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	15 / 16 Passed

Repository: membranedev/application-skills
Path: skills/tinypng/SKILL.md
Commit: f484c82

Reviewed: 4 days ago

Table of Contents

Discovery Implementation Validation

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.