一个MCP服务器，让Claude或任何MCP客户端能够直接、只读地访问一个多门店餐饮集团的每日营业数据——更准确地说，是那些钱在没人记录的情况下流失的数字。
You: is anything leaking this week?
Claude: Eixample (BCN-01) — voided tickets have drifted from 1.55% of gross
to 4.60% over the last seven days, against a 28-day baseline. That is
799.16 EUR over the window. It is not a spike on one shift; it is a slope
across the whole week, which is the shape a till problem makes.大多数报表工具回答的是每个人都会问的问题：我们卖了什么？销售额是简单的数字。它们出现在收银机上、仪表盘上、午夜过后的WhatsApp群里。
决定一个门店是否盈利的数字是折扣、免单项目和作废订单——控制模块——而这些几乎从未出现在日报中。作废率在三周内从1%滑落到4%，在任何一个晚上看起来都不算什么。它看起来像是一个糟糕的星期二，然后是一个冷清的星期四。只有当你将一个时间段与前一个时间段进行比较时，它才看起来像是一个问题，而这正是这个服务器所做的。
这里的阈值并非来自统计学教科书。它们来自于实际运营门店的经验。
Related MCP server: VeloceMCP
工具 | 回答的问题 |
| 哪些门店存在以及数据覆盖的时间段 |
| 某一天的所有信息：按渠道划分的销售额、客流量、平均客单价、控制模块、人工成本 |
| 这个星期六真的很糟糕，还是只是感觉糟糕？ |
| 某个时间段的汇总，按门店和集团统计 |
| 哪些数据相对于其自身基线发生了变化，以欧元计 |
每个工具都是只读的，并已标注为只读，接受 response_format: "markdown"（供人阅读）或 "json"（供程序使用）。
venue_ops_find_anomalies 将最近7天与前28天进行比较，并报告两种不同情况，因为它们含义不同：
漂移 —— 整个近期窗口已经移动。未固定的轮班表、收银机问题、为了息事宁人而开始免单的经理。这是代价高昂的那种，也是没人注意到的那种。
峰值 —— 某一天远高于基线。通常是没人记录的促销活动。解释起来很简单，值得确认。
低于40欧元的发现会被忽略。它们是真实的，但不值得打一个电话，而一个总是报假警的报告在第三周就会被忽视。
data/operations.json 是合成的。三个门店，182天，由 scripts/generate_data.py 使用固定种子生成，以确保结果可重现。这不是真实的业务，也无法从中识别出任何真实业务。
数字是虚构的；但形态不是。工作日的季节性、堂食/外卖比例、折扣和作废率以及人工成本百分比都处于休闲餐饮常见的范围内。
故意植入了三个异常，以便检测功能有真实的东西可找，并且任何人都可以检查其是否有效：
门店 | 内容 | 时间 |
BCN-01 | 作废率从0.9%漂移到5.2%然后停止 | 2026年6月15日 – 7月5日 |
MAD-02 | 人工成本百分比在一周内飙升至41% | 2026年4月6日 – 12日 |
MAD-01 | 两个孤立的14%折扣日 | 2026年5月9日, 7月18日 |
要将其指向真实的销售点系统，请替换 venue_ops_mcp/data.py 中的数据加载器。工具层不关心数据行来自哪里。
pip install -r requirements.txt
python scripts/generate_data.py将其添加到 claude_desktop_config.json：
{
"mcpServers": {
"venue-ops": {
"command": "python",
"args": ["-m", "venue_ops_mcp.server"],
"cwd": "/absolute/path/to/venue-ops-mcp"
}
}
}重启Claude Desktop。然后可以询问类似以下内容：
我们有哪些门店？
Gran Via上周六的表现与之前的周六相比如何？
检查巴塞罗那截至7月5日那一周的问题。
集团在七月份的表现如何？
python scripts/smoke_test.py # every tool, and the planted anomalies
python scripts/stdio_check.py # the MCP handshake a real client performssmoke_test.py 断言巴塞罗那的漂移仍然被检测到，并且一个干净的窗口没有产生任何发现。一个对所有事情都触发的检测器比没有检测器更糟糕，因此两个方向都经过了测试。
Python 3.10+，MCP Python SDK（MCPServer，stdio传输），Pydantic v2用于输入验证。无外部服务，无凭证，无网络调用——服务器仅读取本地文件。
MIT。
Compare a day against the same weekday in previous weeks.
This is the only fair comparison in hospitality. Measuring a Monday against the Sunday before it makes every Monday look like a collapse and every Friday like a triumph; comparing like weekday with like weekday is what tells you whether something actually changed.
Args: params (CompareWeekdayInput): Validated parameters containing: - venue_id (str): Venue identifier - day (str): The day being judged, YYYY-MM-DD - weeks (int): How many previous same-weekdays to average, 1-12 (default 4) - response_format (ResponseFormat): 'markdown' or 'json'
Returns: str: The day, the same-weekday average, and the variance between them.
JSON schema:
{
"venue_id": str,
"day": {...}, # same shape as venue_ops_get_day
"comparison_days": [str], # dates averaged
"averages": {"net_sales": float, "covers": float,
"average_ticket": float, "labour_pct": float,
"discount_rate": float, "void_rate": float},
"variance": {...} # same keys, as fractions of 1
}Examples: - Use when: "Was last Saturday actually bad, or does it just feel bad?" - Don't use when: You want a whole month's totals (use venue_ops_period_summary).
| Name | Required | Description | Default |
|---|---|---|---|
| params | Yes |
| Name | Required | Description |
|---|---|---|
| result | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true. The description adds context about the comparison methodology, output shape, and variance meaning, going beyond the annotations. It doesn't cover auth/rate limits, but those are less critical for a read-only tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with summary, rationale, Args, Returns, and Examples sections. The rationale is slightly verbose but earns its place by explaining the tool's unique value. It's not excessively long for the information conveyed.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity and the presence of annotations and output schema, the description covers purpose, usage, parameters, and return format well. It includes examples and a JSON schema snippet. Minor gaps like edge cases with insufficient weeks are not addressed, but overall it's comprehensive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema already provides descriptions for all parameters (venue_id, day, weeks, response_format), so schema coverage is high. The description's Args section repeats and lightly rephrases the schema, adding minimal new meaning. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states 'Compare a day against the same weekday in previous weeks' with a specific verb and resource, and explains why this is the only fair comparison in hospitality. It clearly distinguishes from sibling tools like venue_ops_period_summary and venue_ops_get_day.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly provides 'Use when' and 'Don't use when' scenarios, and names an alternative tool (venue_ops_period_summary) for a different use case. This gives the agent clear decision criteria.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Flag discounts, comps, voids or labour moving against their own baseline.
Compares the last 7 days against the 28 before them and reports two shapes. A drift is a sustained rise across the whole recent window, which is what a till problem or an unfixed rota looks like. A spike is one day far outside the baseline, usually a promotion nobody logged. Findings below 40 EUR are dropped: they are real but not worth a phone call.
Args: params (AnomalyInput): Validated parameters containing: - venue_id (Optional[str]): One venue, or omit to scan all - end (Optional[str]): Last day of the window, defaults to the dataset end - response_format (ResponseFormat): 'markdown' or 'json'
Returns: str: Findings sorted by money at stake, largest first.
JSON schema:
{
"window_end": str,
"findings": [
{
"type": "drift" | "spike",
"metric": str, # discount_rate | comp_rate | void_rate | labour_pct
"label": str, # human wording, e.g. "voided tickets"
"venue_id": str,
"baseline_rate": float, # fraction of 1
"euros_at_stake": float,
# drift only: window, baseline_window, recent_rate, relative_increase
# spike only: date, weekday, day_rate, z_score
}
]
}Examples: - Use when: "Is anything leaking this week?" - Use when: "Check Barcelona for problems ending 5 July." - Don't use when: You want the day's trading figures (use venue_ops_get_day).
| Name | Required | Description | Default |
|---|---|---|---|
| params | Yes |
| Name | Required | Description |
|---|---|---|
| result | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so safety is clear. The description adds valuable behavioral detail: the comparison windows (7 vs 28 days), the two shapes (drift vs spike), and the €40 threshold for dropping findings. These go beyond annotations. Minor deduction for not explicitly stating the tool is idempotent in behavior, though annotations cover it.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Well-structured with logical sections: overview, algorithm details, args, returns, examples. Each sentence adds value. Minor deduction: the overview paragraph could be slightly more concise (e.g., 'Compares the last 7 days...' could be merged with the earlier sentence).
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Fully complete for a read-only analytical tool with a single required parameter (params). The output schema is fully documented, annotations cover safety, and the description explains the algorithm, thresholds, and use cases. The complexity is moderate, and every aspect is addressed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, meaning the JSON schema provides no descriptions for the top-level parameters. However, the description includes a comprehensive 'Args' section with valid types, defaults, and behavior for each parameter (venue_id, end, response_format). This fully compensates for the schema gap. The output schema is also clearly documented in the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses specific verbs ('Flag', 'Compares') and resources ('discounts, comps, voids or labour'), clearly distinguishing this from siblings like venue_ops_get_day (daily trading figures) and venue_ops_period_summary. The domain of anomaly detection is well-defined.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides explicit 'Use when' and 'Don't use when' examples, directly referencing a sibling tool (venue_ops_get_day) for contrasting use cases. This gives clear guidance on when to invoke this tool vs. alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Return the full trading figures for one venue on one day.
Gives sales split by channel, covers, average ticket, the control block (discounts, comps, voids) and labour cost, with every rate expressed against gross so the percentages are comparable across venues.
Args: params (DayInput): Validated parameters containing: - venue_id (str): Venue identifier, e.g. 'MAD-01' - day (str): Trading day, YYYY-MM-DD - response_format (ResponseFormat): 'markdown' or 'json'
Returns: str: The day's figures.
JSON keys include: net_sales, dine_in_sales, delivery_sales, covers,
transactions, average_ticket, spend_per_cover, discounts, comps, voids,
control_total, gross_sales, discount_rate, comp_rate, void_rate,
labour_cost, labour_hours, labour_pct (float rates are fractions of 1).
Error response: "Error: <message>" naming the valid venues or dates.Examples: - Use when: "How did Gran Via do on 14 August?" - Don't use when: You want to know whether that day was normal (use venue_ops_compare_weekday).
| Name | Required | Description | Default |
|---|---|---|---|
| params | Yes |
| Name | Required | Description |
|---|---|---|
| result | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds value by detailing the exact output format (markdown or json), listing all JSON keys, and describing the error response format. This goes beyond the annotations without contradicting them.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-organized with clear sections (Args, Returns, Examples). Every sentence is informative and earns its place. The main purpose is stated in the first sentence, and the total length is proportional to the tool's complexity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool is simple (single venue, single day), and the description covers input parameter details, output structure (with key names), error handling, and usage examples. It also differentiates from a sibling tool. Given the output schema exists and the tool has good annotations, the description is fully sufficient.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description includes an 'Args' section that describes venue_id, day, and response_format with examples. The input schema also has descriptions for each parameter, so the tool description adds context like 'Use venue_ops_list_venues to see them all' and the example date format. The return keys are also listed, which helps the agent understand parameter impact.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description opens with 'Return the full trading figures for one venue on one day,' which is a specific verb+resource combination. It lists the exact data breakdown (sales by channel, covers, average ticket, etc.) and explicitly distinguishes from sibling venue_ops_compare_weekday in the 'Don't use when' example.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The 'Examples' section provides a clear use case ('How did Gran Via do on 14 August?') and a non-use case with an explicit alternative tool ('use venue_ops_compare_weekday'). This gives the agent precise when-to-use and when-not-to-use guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
List every venue in the dataset and the period the data covers.
Call this first when you do not know which venue ids exist. It is cheap and it tells you the date range every other tool will accept.
Args: params (ListVenuesInput): Validated parameters containing: - response_format (ResponseFormat): 'markdown' or 'json'
Returns: str: Venue list and covered period.
JSON schema:
{
"currency": str, # e.g. "EUR"
"period": {"start": str, "end": str},
"venues": [
{"venue_id": str, "name": str, "city": str, "seats": int}
]
}Examples: - Use when: "Which sites do we have data for?" - Don't use when: You already have a venue id and want figures (use venue_ops_get_day).
| Name | Required | Description | Default |
|---|---|---|---|
| params | Yes |
| Name | Required | Description |
|---|---|---|
| result | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=true, idempotentHint=true, destructiveHint=false, so safety profile is clear. The description adds value by explaining the tool reveals the date range accepted by other tools, which is behavioral context beyond annotations. However, it does not detail what happens on failure or edge cases (e.g., empty dataset).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Extremely concise and well-structured. Description front-loads the core purpose, follows with usage guidance, then succinctly documents parameters and output schema via Args/Returns/JSON schema. Every sentence adds value without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has a single parameter, a clear output schema, and rich annotations, the description is complete. It covers purpose, usage context, parameter details, and expected output structure. No gaps remain for agent decision-making.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 0% but there is only 1 parameter (response_format) which is well described in the schema (markdown vs json). The description adds an example of usage context but does not significantly improve schema understanding. Baseline 3 is appropriate as schema already handles this simple parameter adequately.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool lists every venue and the period data covers. It differentiates from siblings by explaining when to call this first (when venue ids are unknown) and directs to venue_ops_get_day for known venue ids.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly advises to call this first when venue ids are unknown, notes it is cheap, and clarifies the date range context. Provides concrete when-to-use and when-not-to-use examples, including which sibling tool to use instead (venue_ops_get_day).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Total up a date range, for one venue or for the whole group.
Args: params (PeriodInput): Validated parameters containing: - start (str): First day, YYYY-MM-DD - end (str): Last day inclusive, YYYY-MM-DD - venue_id (Optional[str]): One venue, or omit for all venues plus a total - response_format (ResponseFormat): 'markdown' or 'json'
Returns: str: Totals and derived rates for the range.
JSON schema:
{
"period": {"start": str, "end": str},
"venues": {venue_id: {...aggregated figures...}},
"group_total": {...} # present only when venue_id was omitted
}Examples: - Use when: "What did the group do in July?" - Use when: "Give me Chamberi's numbers for the last two weeks." - Don't use when: You want a single day (use venue_ops_get_day).
| Name | Required | Description | Default |
|---|---|---|---|
| params | Yes |
| Name | Required | Description |
|---|---|---|
| result | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds behavioral context by specifying that the group_total is present only when venue_id is omitted, and that the response format can be markdown or json. This goes beyond the annotations without contradicting them.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured with clear sections (Args, Returns, JSON schema, Examples) and is appropriately sized. Every sentence adds value, and the examples are concise and illustrative. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (4 parameters, one nested object, output schema provided), the description is complete. It covers input semantics, output structure, usage examples, and exclusions. The output schema is present, so the description doesn't need to explain return values in detail, but it still provides a high-level summary.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does 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 by listing each parameter (start, end, venue_id, response_format) with brief semantics and the JSON schema for the return value. While it doesn't detail every field in the aggregated figures, it provides enough for an agent to understand the inputs and expected output structure.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool aggregates a date range for one venue or the whole group, with specific verbs ('Total up') and resource ('date range, for one venue or for the whole group'). It distinguishes from sibling tools by explicitly noting when not to use it (single day, use venue_ops_get_day).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit usage examples ('Use when: What did the group do in July?') and a clear exclusion ('Don't use when: You want a single day (use venue_ops_get_day)'). This directly guides the agent on when to select this tool versus alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
v0.1.0venue_ops_compare_weekdayvenue_ops_find_anomaliesvenue_ops_get_dayvenue_ops_list_venuesvenue_ops_period_summaryScored across 5 tools
Each tool has a clearly distinct purpose: listing venues, retrieving a single day, comparing to same weekday averages, aggregating a range, and detecting anomalies. There is no overlap or ambiguity between them, and cross-references in examples reinforce which tool to use for which question.
All five tools follow the exact same verb_noun pattern with the venue_ops_ prefix, using snake_case (find_anomalies, list_venues, get_day, compare_weekday, period_summary). The naming is perfectly predictable and consistent.
With 5 tools, the server is well-scoped for a venue operations analytics domain. Each tool earns its place and covers a distinct query pattern without being too thin or unnecessarily heavy.
The tool surface covers the core analytics needs: discovery (list), point-in-time snapshot (get day), fair comparison (compare weekday), aggregation (period summary), and proactive insight (find anomalies). No obvious gaps within the stated purpose of venue analytics.
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