GoodNotes MCP Server
Server Quality Checklist
Latest release: v0.1.0
- Disambiguation3/5
read_notebook and read_page overlap significantly, as read_notebook can read a single page using page_start/page_end, causing potential misselection. The other tools (list, get_unprocessed, search, mark_processed) are clearly distinct.
Naming Consistency4/5Tool names follow a snake_case verb_noun pattern, but verbs vary (list, read, get, search, mark) and 'get_unprocessed' and 'mark_processed' use adjectives rather than clear nouns, creating minor inconsistency.
Tool Count5/5With 6 tools, the set is well-scoped for the server's purpose of reading, searching, and tracking GoodNotes content. It is neither too sparse nor overly heavy.
Completeness4/5The core workflow of listing notebooks, reading pages, searching, retrieving unprocessed pages, and marking them processed is covered. Minor gaps include redundancy between read_notebook/read_page and no explicit tool for listing page IDs independently.
Average 4.2/5 across 6 of 6 tools scored.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 0 commits in the last 12 weeks
- No stable releases found
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI status not available
This repository is licensed under MIT License.
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How is the quality score calculated?
The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).
Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.
Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).
Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.
Tool Scores
- Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden for behavioral transparency. It only states the action and does not disclose side effects, idempotency, reversibility, or prerequisites (other than the 'written to Obsidian' context). For a mutation tool, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise and front-loaded, with a one-sentence purpose followed by a clear args list. Every sentence earns its place; there is no fluff or repetition of structured data.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple 2-parameter tool, the description covers the essential purpose and args, and an output schema exists to handle return values. However, it lacks context about side effects, idempotency, or what 'processed' means in the system, which would be expected given no annotations.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds meaningful parameter semantics: it explains that notebook_id is 'the document UUID' and page_ids are 'Comma-separated page UUIDs', which goes beyond the schema's bare titles. This compensates for the 0% schema description coverage, providing crucial format and type information.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action: 'Mark pages as processed after they've been written to Obsidian.' This is a specific verb+resource, and it distinguishes from sibling tools that are all read/list operations. The purpose is unambiguous and contextually relevant.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use the tool ('after they've been written to Obsidian'), giving some contextual guidance. However, it does not explicitly mention alternatives or exclusions, nor does it explain what to do if pages are already processed. It is implied usage rather than explicit guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
- Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It indicates a read-only operation via the verb 'Read', but does not explicitly state that it is non-destructive or address edge cases like invalid page numbers or missing notebooks. Some context is given (1-indexed pages), but more detail would improve transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
The description is remarkably concise, consisting of a single sentence plus an Args block. Every sentence earns its place, and the structure is front-loaded with the primary purpose first. No redundant or extraneous information is present.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple two-parameter read tool, the description is almost complete. It explains both parameters and the core functionality, and an output schema exists to define return values. However, it lacks explicit usage guidance and does not describe error handling or behavioral nuances, which prevents a perfect score.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Since the input schema has no property descriptions (0% coverage), the description must compensate. It does so by explaining notebook_id as 'The document UUID' and page_number as 'Page number (1-indexed)', adding semantic meaning beyond the raw types. This is helpful, though not exhaustive in describing formats or constraints.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's function: 'Read OCR text from a single page of a GoodNotes notebook.' It specifies the verb (read), the resource (OCR text), and the scope (single page), which distinguishes it from siblings like read_notebook. The purpose is immediately understandable and unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives such as read_notebook or search_notes. It does not mention any exclusions or conditions, leaving the agent to infer usage solely from the tool name and basic description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
- Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description discloses the key behavior: it returns OCR text for each page, including multiple word candidates separated by '|' to aid context selection. This clarifies output format and implies a read-only operation, though it doesn't cover error handling or edge cases like missing notebook IDs.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise: one sentence for purpose, one for return format, and a clean argument list with defaults. No redundant information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers purpose, output format, and parameter semantics effectively. Given the presence of an output schema and the simplicity of the read operation, it is complete enough for an agent to select and invoke the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters5/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 0%, but the description fully compensates by explaining each parameter: notebook_id sourced from list_notebooks, page_start with 1-indexing and default, page_end with special value 0 meaning all pages. This adds meaning beyond the raw schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Read OCR text from a GoodNotes notebook' with a specific verb and resource. It further distinguishes itself by noting it returns text 'for each page' with candidate separators, which is distinct from sibling tools like read_page or list_notebooks.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage via page range parameters and defaults (0 = all pages), but it does not explicitly state when to choose this over read_page or other siblings. No exclusions or alternative tool names are mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
- Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It explains the non-obvious mechanism (comparing a tracking file against the FTS index), which gives meaningful insight into how results are determined. It does not explicitly mention side effects, but the described behavior is read-only in nature.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with no filler. The first sentence states the purpose, the second explains the underlying mechanism. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
This is a simple zero-parameter retrieval tool, and the description fully explains what it returns and how it works. An output schema is present, so return value details are not required. No critical context is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters, so the schema provides complete coverage. The description still adds value by clarifying what 'unprocessed' means in terms of change detection, which is relevant context even though no parameter details are needed.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Get') with a clear resource ('notebooks and pages') and a distinct scope ('haven't been processed yet or changed since last processing'). This cleanly distinguishes it from sibling tools like list_notebooks, read_notebook, search_notes, and mark_processed.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5Does the description explain when to use this tool, when not to, or what alternatives exist?
The description clearly conveys when this tool is appropriate: when you need items that are new or changed since last processing. It implies a workflow with mark_processed, though it does not explicitly name alternatives or state exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
- Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It discloses two key behaviors: filtering out templates (epoch-zero timestamps) and returning a formatted list sorted by last modified date. The verb 'List' implies a read-only operation, but it does not explicitly mention side effects or authentication requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences, front-loaded with the core purpose, followed by valuable behavioral details. Every word earns its place with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With an output schema present, the description doesn't need to explain return values. It adds contextual information about filtering and sorting that the schema cannot convey, making the tool's behavior fully understandable for a list operation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters, so the baseline of 4 applies. The description correctly omits parameter details, and the schema already covers all (none) parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific action ('List all GoodNotes notebooks') with the exact resource and return fields (names, IDs, page counts, last modified dates). It clearly distinguishes from siblings like read_notebook and read_page by focusing on metadata listing rather than content access.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides clear context for when to use: to get a full list of user notebooks. Mentions filtering out templates and sorting, which clarifies expected behavior. However, it does not explicitly name alternatives or state when not to use, even though the purpose makes it fairly obvious.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
- Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description discloses key behaviors: case-insensitive matching and splitting multi-word queries, including the reason (GoodNotes OCR word grouping). This adds useful transparency, but it omits potential limitations like lack of exact-phrase search or result ordering.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise and front-loaded with purpose, followed by a necessary behavioral explanation. The Args section is structured and avoids redundancy. Every sentence contributes value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simple one-parameter input and presence of an output schema, the description covers the essential behavioral aspects. It could mention result ordering or limits, but these are likely provided by the output schema. It is complete enough for an agent to use the tool effectively.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters5/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema provides no description for 'query' (0% coverage). The description compensates clearly, explaining that each word is matched independently and case-insensitively. This is precise and adds full semantics beyond the raw schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5Does the description clearly state what the tool does and how it differs from similar tools?
The description explicitly states 'Search across all handwritten notes' with a specific verb and resource, clearly distinguishing it from sibling tools like list_notebooks or read_notebook. This is a clear, non-tautological statement of purpose.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5Does the description explain when to use this tool, when not to, or what alternatives exist?
The context is clear: this tool is for searching, not browsing or processing. However, it lacks explicit exclusions or alternatives, such as 'use list_notebooks to browse'. The clear context earns a 4, but the absence of explicit when-not-to-use keeps it from a 5.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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