context-retrieval
Server Quality Checklist
Latest release: v1.0.0
- Disambiguation5/5
Each tool targets a distinct operation: reset/index/status/retrieval are clearly separated from the three extraction tools, which differ by output type (text/images/tables). Even though extract_document_text and index_document both process PDFs, one returns extracted text while the other persists chunks into the vector store, so an agent can choose unambiguously.
Naming Consistency4/5Most tools follow a verb_noun pattern (reset_index, index_document, search_context), and the extract_document_* family is perfectly consistent. index_info is slightly off-pattern because it reads as a noun phrase rather than verb + object, but this is a minor deviation.
Tool Count5/5Seven tools is a well-scoped size for a PDF extraction and RAG retrieval server. Each tool earns its place and there is no redundant duplication.
Completeness4/5The core workflow is covered: documents can be extracted, indexed, searched, and the entire index can be reset. The main gap is the lack of a way to delete a single document from the index, with only reset_index for the whole store, and no explicit list of indexed file names.
Average 4.1/5 across 7 of 7 tools scored.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 8 commits in the last 12 weeks
- No stable releases found
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI is passing
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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
- Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of behavioral disclosure. It reveals output format, per-image metadata, the effect of include_data=false, and the oversized-image fallback behavior. This is substantial transparency, though it does not mention error behavior or side effects.
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 with no filler. The core action and output format are front-loaded, and the conditional behavior of include_data is stated efficiently. Every sentence contributes useful information.
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?
The description covers the primary behavior and return metadata well, and an output schema exists to define the return shape. However, the semantics of pages and max_images are left completely undocumented, and there is no guidance for choosing among extraction siblings. This leaves meaningful gaps for correct invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate for all parameters. It only clarifies include_data semantics; pages and max_images remain unexplained in both schema and description. This leaves an agent to guess the expected format or behavior of those 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 verb and resource: extract embedded images from a PDF, and specifies the output format as base64 PNG. It is clearly distinguished from sibling tools like extract_document_text and extract_document_tables without ambiguity.
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 for image extraction and gives parameter-level guidance for include_data=false, but it does not explicitly state when to choose this tool over siblings or provide exclusion criteria. The context is clear enough for an agent, but explicit routing guidance is missing.
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 carries full behavioral burden. It discloses the multi-strategy pipeline (Camelot lattice/stream with PyMuPDF fallback), explains what flavor='auto' does, and explicitly states the return structure (rows, columns, CSV per table). It does not discuss failure modes, but it provides meaningful behavioral context beyond the schema.
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, front-loaded with the primary action, and every clause adds useful information. No redundant filler or restating of the tool name.
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?
The description covers extraction strategy and output format, and an output schema is present so return details are already structurally defined. The main gap is that the pages parameter behavior remains unspecified, and there is no guidance on what happens when no tables are found. Sufficient for default usage but incomplete for full parameter-level decision-making.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate for all three parameters. It clearly explains flavor's behavior and pdf_path is self-evident from the tool's purpose. However, pages is entirely undocumented: there is no hint that it expects a string like '1-3,5' or what passing null means. Partial compensation, not full.
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 opening verb phrase 'Extract tabular data from a PDF' is specific, names the resource (PDF) and the exact kind of content (tabular data), and is immediately distinguishable from siblings like extract_document_text and extract_document_images. The added method/return mentions reinforce rather than obscure purpose.
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 it: whenever the agent needs tabular data from a PDF. However, it never explicitly contrasts with extract_document_text or extract_document_images, nor gives exclusion criteria (e.g., use extract_document_text for non-tabular content). The usage context is clear but the alternative-selection guidance is left to inference.
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 behavioral burden and does well: it discloses the full processing pipeline, persistent store mutation, and re-indexing replacement vs append semantics. Could mention failure behavior or side effects, but the core mutation behavior is transparent.
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?
Three dense sentences with no fluff. The pipeline is front-loaded, usage comes next, and the replace/append caveat is at the end. Every sentence earns its place.
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?
Covers the main workflow, post-index search routing, and the critical replace behavior. Given an output schema exists, return values need no explanation. Minor gaps remain around chunk_size and chunk_overlap semantics, but the description is largely sufficient for correct invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters2/5Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate. It only explains 'replace' semantics; the pipe path is inferable from the name, but chunk_size and chunk_overlap receive no meaningful description beyond the vague 'LangChain chunking' reference.
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?
States a specific verb, resource, and pipeline ('Index a PDF into the local RAG store') and describes the transformation chain from PyMuPDF text to FAISS. Clearly distinguishes indexing from sibling tools like extract_document_text and search_context.
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 usage context: call once per document, then search_context for queries, with replace/append behavior. Does not explicitly enumerate when to prefer extraction siblings, but the pipeline and search handoff make the intended workflow obvious.
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?
There are no annotations, so the description carries the full burden of behavioral disclosure. The verb 'Report' and the listed fields strongly imply a read-only status operation with no side effects, which is adequate for a zero-parameter tool. However, it does not explicitly state read-only behavior or what happens if the index does not exist yet.
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 a single front-loaded sentence with a colon-separated list of report contents. Every word contributes information, and there is no redundant filler or repetition of the tool name.
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?
Given the tool's low complexity, zero parameters, and presence of an output schema, the description is complete enough for an agent to invoke it correctly. It names exactly what status fields will be reported, and nothing else is required.
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 and the input schema properties object is empty, so there are no parameter semantics for the description to clarify. The zero-parameter baseline of 4 applies because the description needs no additional parameter detail.
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 the specific verb 'Report' with the resource 'vector store status' and enumerates concrete outputs: documents, chunk count, dimension, and FAISS index type. This clearly differentiates it from siblings like reset_index, index_document, and search_context, which perform different operations.
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?
No explicit when-to-use or when-not-to-use guidance is provided, and no alternative tools are named. The intended usage is only implied: it is the obvious status-check tool among the siblings, but there is no suggestion about when to invoke it, such as before indexing or after a reset.
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 the implementation (PyMuPDF), the exact JSON return structure (page count, document metadata, per-page text with 1-based page numbers), and the page-range syntax. It does not mention edge cases like scanned PDFs or encryption, but for a read-only extraction tool this is solid coverage.
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 action is front-loaded, followed by output format and the one non-obvious parameter usage. Every sentence earns its place.
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 tool with an output schema, the description covers the core purpose, the return structure, and parameter syntax. It does not mention error scenarios or ideal use cases relative to siblings, but nothing essential is missing for an agent to call it correctly.
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?
With 0% schema description coverage, the description must compensate. It explicitly documents the pages parameter with concrete syntax ('1-3' or '1,5'), while pdf_path is self-explanatory given the phrase 'from a PDF'. The description adds meaningful context that the raw schema lacks.
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 opens with a specific verb and resource ('Extract structured text from a PDF') and adds clarifying detail ('page by page', 'Returns JSON', '1-based page numbers'). The term 'text' clearly differentiates it from sibling tools focused on images and tables, so an agent can tell them apart.
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 gives clear instruction on the pages parameter ('use pages=\'1-3\' or \'1,5\' to limit output') but does not explicitly state when to prefer this tool over siblings like extract_document_images or extract_document_tables. Tool-selection guidance is only implied by the word 'text' and the sibling names.
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 fully carries the burden of disclosing behavior, and it does so clearly: the tool destroys all indexed documents and clears the persisted vector store. It does not explicitly mention irreversibility or downstream effects on search_context/index_info, but the destructive scope is explicitly and strongly stated.
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 a single, front-loaded sentence with no filler. Every word contributes to the agent's understanding of the tool's destructive effect.
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?
For a zero-parameter destructive reset operation, the description is complete: it states exactly what is dropped and what is cleared, and the presence of an output schema covers return-value expectations. Sibling tool names provide enough surrounding context to situate this operation within the broader indexing workflow.
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 accepts zero parameters, so there is no parameter semantics burden on the description. The schema already trivially covers 100% of parameters, and the description adds a clear conceptual model of what the parameterless invocation accomplishes.
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 names a specific verb ('Drop') and resource ('every indexed document' and 'persisted vector store'), making the tool's destructive reset purpose unmistakable. It clearly distinguishes reset_index from siblings like index_document, search_context, and index_info, which operate on or query the index rather than clearing it.
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 wording strongly implies this is the full-reset tool: 'Drop every indexed document' is unambiguous. However, the description never explicitly states when to choose reset_index over alternatives, nor does it warn that this should not be used for selective deletions or before confirming the loss of all indexed data.
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 behavioral disclosure burden. It explains the ranking methodology (cosine similarity), the output provenance (source file and page), and the effect of the optional filter, which gives a solid sense of expected behavior for a read-only search tool.
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 with no filler. The first sentence front-loads the core capability, output format, and ranking method, while the second adds the optional filter and downstream use. Every phrase 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?
For a moderate-complexity tool with an output schema present, the description is complete: it states what the tool does, what it returns, how results are ordered, and the optional filter. It also gives a practical hint to feed results into answer generation, which covers the intended integration context adequately.
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?
Schema description coverage is 0%, so the description must compensate. It does: 'top-k' clarifies the k parameter's role, and source_filter is explicitly explained as narrowing hits to one document. The query parameter is left implicit, but its purpose is intuitively clear from the context.
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: semantic search over indexed documents using FAISS and local embeddings, returning top-k chunks with source file and page provenance. This distinguishes it from sibling tools like extract_document_text and index_document, which handle extraction and indexing rather than search.
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 provides clear usage context: the returned chunks should be fed to answer generation, indicating it is the retrieval tool for grounding answers. It does not explicitly say when not to use it or compare directly to extract_document_text, but the intended use case is evident from the phrasing.
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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