{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"tool_essaygrader","slug":"essaygrader","name":"EssayGrader","type":"product","url":"https://essaygrader.ai","page_url":"https://unfragile.ai/essaygrader","categories":["text-writing"],"tags":[],"pricing":{"model":"freemium","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"tool_essaygrader__cap_0","uri":"capability://text.generation.language.grammar.and.syntax.error.detection.with.explanations","name":"grammar-and-syntax-error-detection-with-explanations","description":"Scans essay text using NLP-based grammar parsing (likely leveraging transformer models or rule-based grammar engines) to identify grammatical errors, punctuation mistakes, and syntax violations. Returns structured error reports with character-level highlighting, error classification (subject-verb agreement, tense consistency, etc.), and plain-language explanations of why each error is incorrect and how to fix it. The system appears to use multi-pass analysis to catch both surface-level typos and deeper syntactic issues.","intents":["I need to understand what grammar mistakes I made and why they're wrong, not just where they are","I want to catch common grammatical errors before submitting my essay to my teacher","I need a detailed report of all syntax issues in my paper for self-study"],"best_for":["High school and undergraduate students seeking supplementary grammar feedback","Non-native English speakers wanting detailed explanations of grammatical rules","Teachers wanting to automate first-pass mechanical error detection"],"limitations":["May over-flag stylistic choices as errors (e.g., intentional sentence fragments for rhetorical effect)","Struggles with context-dependent grammar rules (e.g., when passive voice is appropriate in academic writing)","Cannot distinguish between errors and discipline-specific conventions (technical writing may intentionally use shorter sentences)"],"requires":["Plain text or document upload (likely .txt, .docx, .pdf support)","Internet connection for cloud-based processing","Essay length typically under 10,000 words for free tier"],"input_types":["plain text","document files (.docx, .pdf, .txt)"],"output_types":["structured error report with line/character offsets","categorized error list (grammar, punctuation, spelling)","annotated text with inline error highlighting"],"categories":["text-generation-language","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_1","uri":"capability://text.generation.language.essay.structure.and.organization.analysis","name":"essay-structure-and-organization-analysis","description":"Analyzes the logical flow and organizational coherence of an essay by parsing paragraph-level content, identifying thesis statements, topic sentences, and argument progression. Uses pattern matching or sequence analysis to detect structural issues like missing introductions, weak transitions, unsupported claims, or illogical argument ordering. Returns a structural audit report highlighting where the essay deviates from standard academic essay conventions (intro-body-conclusion, thesis placement, paragraph unity).","intents":["I need feedback on whether my essay is well-organized and logically structured","I want to know if my thesis is clear and properly supported by my body paragraphs","I need to understand if my argument flows logically from one paragraph to the next"],"best_for":["Undergraduate students learning academic essay structure","High school students preparing for standardized writing assessments","Teachers wanting automated feedback on organizational coherence"],"limitations":["Cannot evaluate the validity or originality of arguments—only structural soundness","Assumes Western academic essay conventions (may not apply to other writing traditions or creative essays)","Struggles with non-traditional essay structures (experimental, narrative, or discipline-specific formats)","Cannot assess whether evidence actually supports claims (requires semantic understanding beyond structure)"],"requires":["Minimum essay length (typically 200+ words for meaningful structural analysis)","Clear paragraph breaks and standard formatting","English-language essays (structure analysis is language-specific)"],"input_types":["plain text with paragraph breaks","formatted documents (.docx, .pdf)"],"output_types":["structural audit report","paragraph-level feedback","organization score or grade","suggestions for reorganization"],"categories":["text-generation-language","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_2","uri":"capability://text.generation.language.tone.and.clarity.assessment","name":"tone-and-clarity-assessment","description":"Evaluates the tone, voice, and clarity of writing by analyzing word choice, sentence complexity, and stylistic patterns. Uses readability metrics (Flesch-Kincaid, likely combined with semantic analysis) and tone classification models to assess whether the essay maintains an appropriate academic tone, avoids colloquialisms, and communicates ideas clearly. Returns feedback on tone consistency, clarity issues (overly complex sentences, jargon without explanation), and suggestions for improving readability while maintaining formality.","intents":["I need to know if my essay sounds too casual or informal for an academic assignment","I want feedback on whether my writing is clear and easy to understand","I need to improve the readability of my essay without losing sophistication"],"best_for":["Students learning to write in academic voice","Non-native English speakers wanting to match formal register","Teachers seeking to provide feedback on tone and clarity at scale"],"limitations":["Cannot distinguish between intentional stylistic choices and tone problems","May flag discipline-specific jargon as unclear when it's appropriate for the field","Readability metrics are language-agnostic and may not account for English-specific conventions","Cannot assess whether tone matches the assignment's rhetorical context (persuasive vs. analytical)"],"requires":["Minimum essay length for meaningful tone analysis (typically 300+ words)","English-language text","Sufficient sample size for tone pattern detection"],"input_types":["plain text","formatted documents"],"output_types":["tone assessment report","clarity score","readability metrics","specific suggestions for tone/clarity improvements"],"categories":["text-generation-language","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_3","uri":"capability://text.generation.language.argument.strength.and.evidence.evaluation","name":"argument-strength-and-evidence-evaluation","description":"Analyzes the logical coherence and evidential support of arguments within an essay using semantic analysis and claim-evidence mapping. Identifies main claims, evaluates whether they are supported by evidence, detects logical fallacies or unsupported assertions, and assesses argument completeness. Uses pattern matching to detect common argument structures and flags where claims lack supporting evidence or where reasoning is circular or weak. Returns feedback on argument validity, evidence quality, and logical consistency.","intents":["I need feedback on whether my arguments are logically sound and well-supported","I want to know if I have enough evidence to support my main claims","I need to identify logical fallacies or weak reasoning in my essay"],"best_for":["Undergraduate students in humanities and social sciences learning argumentation","Debate and rhetoric students seeking argument analysis","Teachers wanting to provide feedback on argumentative strength"],"limitations":["Cannot evaluate the factual accuracy of claims—only logical structure","Struggles with discipline-specific argument conventions (scientific papers use different evidence standards than philosophy essays)","May miss subtle logical fallacies or context-dependent reasoning errors","Cannot assess the quality or credibility of sources cited","Assumes Western logical argument structures; may not apply to other rhetorical traditions"],"requires":["Essays with explicit claims and evidence (not purely narrative or descriptive)","Sufficient length for meaningful argument analysis (typically 400+ words)","Clear argument structure (thesis, supporting claims, evidence)"],"input_types":["plain text","formatted documents with citations"],"output_types":["argument strength assessment","claim-evidence mapping report","logical fallacy detection","suggestions for strengthening arguments"],"categories":["text-generation-language","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_4","uri":"capability://data.processing.analysis.citation.and.formatting.compliance.checking","name":"citation-and-formatting-compliance-checking","description":"Validates essay citations and formatting against specified academic style guides (MLA, APA, Chicago, Harvard, etc.). Parses in-text citations and bibliography entries, checks for compliance with style-specific rules (capitalization, punctuation, ordering, required fields), and flags missing or malformed citations. Returns a compliance report identifying formatting errors and providing corrected examples. The system likely uses rule-based validation against style guide specifications rather than semantic understanding of citations.","intents":["I need to check if my citations follow MLA/APA/Chicago format correctly","I want to ensure my bibliography is properly formatted for my assignment","I need to identify missing citations or improperly formatted references"],"best_for":["High school and undergraduate students learning citation conventions","Students writing research papers with strict formatting requirements","Teachers wanting to automate citation compliance checking"],"limitations":["Cannot verify the accuracy or completeness of bibliographic information (e.g., whether a cited page number is correct)","Struggles with non-standard or hybrid citation formats","May not recognize all citation types (e.g., unpublished manuscripts, archival materials)","Cannot assess whether citations are actually relevant or properly integrated into the text","Style guide rules change periodically; tool may lag behind latest editions"],"requires":["User specifies target citation style (MLA, APA, etc.)","Essays with explicit citations and bibliography","Readable text format (plain text or document files)"],"input_types":["plain text with citations","formatted documents (.docx, .pdf)"],"output_types":["citation compliance report","list of formatting errors with corrections","corrected bibliography examples","style guide compliance score"],"categories":["data-processing-analysis","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_5","uri":"capability://safety.moderation.plagiarism.detection.and.originality.assessment","name":"plagiarism-detection-and-originality-assessment","description":"Scans essay text against a database of published works, student submissions, and web content to identify potential plagiarism or excessive paraphrasing. Uses text similarity algorithms (likely cosine similarity on embeddings or n-gram matching) to detect passages that closely match existing sources. Returns a plagiarism report with similarity percentages, flagged passages, and links to potential source material. May also assess originality by detecting overly generic phrasing or heavy reliance on source material without synthesis.","intents":["I need to check if my essay contains unintentional plagiarism before submitting","I want to ensure my paraphrasing is sufficiently original and properly cited","I need a plagiarism report to verify my essay's originality"],"best_for":["Students wanting to verify originality before submission","Teachers seeking to detect academic dishonesty at scale","Institutions with plagiarism detection requirements"],"limitations":["Cannot distinguish between intentional plagiarism and accidental similarity (common phrases, well-known quotes)","May produce false positives on properly cited material or common academic language","Database coverage is limited—may miss plagiarism from unpublished or paywalled sources","Cannot assess whether paraphrasing is sufficiently original (may flag legitimate paraphrasing as plagiarism)","Raises privacy concerns if student work is stored in plagiarism detection databases for future comparison"],"requires":["Internet connection to access plagiarism detection database","Plain text or document upload","Sufficient essay length for meaningful similarity detection (typically 100+ words)"],"input_types":["plain text","formatted documents (.docx, .pdf)"],"output_types":["plagiarism report with similarity percentage","flagged passages with source links","originality assessment","detailed comparison with potential sources"],"categories":["safety-moderation","search-retrieval"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_6","uri":"capability://text.generation.language.comprehensive.feedback.report.generation","name":"comprehensive-feedback-report-generation","description":"Aggregates all individual analyses (grammar, structure, tone, arguments, citations, plagiarism) into a single, comprehensive feedback report with prioritized recommendations. Uses report generation logic to synthesize findings, organize feedback by category or severity, and present actionable suggestions for improvement. The report likely includes an overall essay score or grade, category-specific scores, and a prioritized list of revisions. May include visual elements (charts, highlighted text) to make feedback more accessible.","intents":["I need a complete overview of all issues in my essay in one report","I want to know which problems to fix first (prioritized feedback)","I need a grade or score for my essay to understand its overall quality"],"best_for":["Students wanting comprehensive feedback before teacher review","Teachers using the tool to supplement their grading with detailed reports","Institutions wanting standardized feedback reports for all student essays"],"limitations":["Aggregated scores may not reflect the relative importance of different issues (grammar errors weighted equally to argument weakness)","Cannot provide the holistic, contextual feedback that experienced instructors give","Report quality depends on accuracy of underlying analyses—errors compound","Lacks assignment-specific rubric integration (cannot weight feedback based on assignment priorities)"],"requires":["Completion of all underlying analyses (grammar, structure, tone, etc.)","User preferences for report format and detail level","Optional: assignment rubric or grading criteria for customized feedback"],"input_types":["aggregated analysis results from all capability modules"],"output_types":["comprehensive feedback report (PDF, HTML, or web interface)","overall essay score or grade","category-specific scores","prioritized list of revisions","visual feedback (highlighted text, charts)"],"categories":["text-generation-language","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_7","uri":"capability://automation.workflow.freemium.tier.access.with.usage.limits","name":"freemium-tier-access-with-usage-limits","description":"Implements a freemium business model where users can access core feedback capabilities (grammar, structure, basic tone analysis) with usage limits (e.g., 5 essays/month, limited report detail), while premium tiers unlock unlimited access, advanced features (plagiarism detection, detailed argument analysis), and priority processing. The system likely uses account-based tracking to enforce usage quotas and feature gating based on subscription level.","intents":["I want to try the tool before paying for a subscription","I need unlimited essay grading for my class (teacher/institution)","I want advanced features like plagiarism detection without paying for full premium"],"best_for":["Individual students and teachers evaluating the tool","Budget-conscious educators wanting to reduce grading workload","Institutions seeking cost-effective essay feedback at scale"],"limitations":["Free tier has significant usage limits, making it impractical for heavy users","Feature gating may frustrate users who need specific capabilities (e.g., plagiarism detection) on free tier","No clear upgrade path or pricing transparency in product description","Freemium model may incentivize feature limitations that reduce free tier utility"],"requires":["User account creation","Internet connection","Optional: payment method for premium upgrade"],"input_types":["user account and subscription status"],"output_types":["access control (feature availability based on tier)","usage tracking and quota enforcement","upgrade prompts and pricing information"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"tool_essaygrader__cap_8","uri":"capability://data.processing.analysis.multi.format.document.upload.and.parsing","name":"multi-format-document-upload-and-parsing","description":"Accepts essay submissions in multiple file formats (.txt, .docx, .pdf) and parses them into plain text for analysis. Uses format-specific parsers (likely leveraging libraries like python-docx for Word documents, PyPDF2 or pdfplumber for PDFs) to extract text while preserving paragraph structure and formatting information. Handles encoding issues, corrupted files, and format-specific quirks (embedded images, headers/footers, tracked changes). Returns normalized text representation suitable for downstream analysis modules.","intents":["I want to upload my essay in whatever format I have it in (Word, PDF, plain text)","I need the tool to preserve my essay's structure and formatting during analysis","I want to submit essays without worrying about format compatibility"],"best_for":["Users with essays in various formats (Word documents, PDFs, plain text)","Teachers collecting essays from students in different formats","Institutions with diverse submission workflows"],"limitations":["PDF parsing may fail on scanned documents or complex layouts","Formatting information (bold, italics, indentation) is lost in plain text conversion","Cannot handle embedded images, tables, or complex document structures","File size limits may prevent upload of very large documents","Encoding issues with non-UTF-8 text may cause parsing errors"],"requires":["File size under system limit (typically 10-50 MB)","Supported file format (.txt, .docx, .pdf)","Valid, non-corrupted file"],"input_types":["plain text files (.txt)","Microsoft Word documents (.docx)","PDF documents (.pdf)"],"output_types":["normalized plain text","paragraph-level structure metadata","parsing error reports (if applicable)"],"categories":["data-processing-analysis","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":41,"verified":false,"data_access_risk":"high","permissions":["Plain text or document upload (likely .txt, .docx, .pdf support)","Internet connection for cloud-based processing","Essay length typically under 10,000 words for free tier","Minimum essay length (typically 200+ words for meaningful structural analysis)","Clear paragraph breaks and standard formatting","English-language essays (structure analysis is language-specific)","Minimum essay length for meaningful tone analysis (typically 300+ words)","English-language text","Sufficient sample size for tone pattern detection","Essays with explicit claims and evidence (not purely narrative or descriptive)"],"failure_modes":["May over-flag stylistic choices as errors (e.g., intentional sentence fragments for rhetorical effect)","Struggles with context-dependent grammar rules (e.g., when passive voice is appropriate in academic writing)","Cannot distinguish between errors and discipline-specific conventions (technical writing may intentionally use shorter sentences)","Cannot evaluate the validity or originality of arguments—only structural soundness","Assumes Western academic essay conventions (may not apply to other writing traditions or creative essays)","Struggles with non-traditional essay structures (experimental, narrative, or discipline-specific formats)","Cannot assess whether evidence actually supports claims (requires semantic understanding beyond structure)","Cannot distinguish between intentional stylistic choices and tone problems","May flag discipline-specific jargon as unclear when it's appropriate for the field","Readability metrics are language-agnostic and may not account for English-specific conventions","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.36666666666666664,"quality":0.7300000000000001,"ecosystem":0.15000000000000002,"match_graph":0.25,"freshness":0.75,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.1,"match_graph":0.35,"freshness":0.05}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:30.284Z","last_scraped_at":"2026-04-05T13:23:42.552Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=essaygrader","compare_url":"https://unfragile.ai/compare?artifact=essaygrader"}},"signature":"dmDGw9vk+aK1/zDn5VJnCkofQwxoroTbXBm8qoI5miWfqtfEfBTO7FFjDt973nEwUfsy1RuzxObhEdtwJmRMAg==","signedAt":"2026-06-21T23:45:20.754Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/essaygrader","artifact":"https://unfragile.ai/essaygrader","verify":"https://unfragile.ai/api/v1/verify?slug=essaygrader","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}