Packet Tracer Visual MCP

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ptv_addDevicesTimeline

Add devices sequentially in Packet Tracer with configurable delays, ideal for screen recordings where viewers see each device appear one after another.

Instructions

Add devices one by one inside Packet Tracer with a short delay between real add operations. Use for screen recordings where viewers should see devices appear sequentially.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "devices": "<devices>"
    },
    "name": "ptv_addDevicesTimeline"
  }
}

Input Schema

Name	Required	Default
`devices`	Yes
`delayMs`	No
`qualityMode`	No	fast-safe
`maxRetries`	No
`retryDelayMs`	No
`settleMs`	No
`minSpacing`	No
`autoAssignPorts`	No
`autoFallback`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Jun 18, 2026

TDQS

B3.4/5.0

Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description must fully disclose behavioral traits. It mentions sequential addition with delay and that operations are 'real,' but fails to describe key behaviors such as how failures are handled (retries), the effect of parameters like qualityMode, or whether the operation is atomic. This minimal disclosure is insufficient for safe invocation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences and extremely concise, which is good for readability. However, it lacks structure such as a brief list of key parameters or a note about defaults. For a tool with 9 parameters, slightly more structure would help without sacrificing conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 9 parameters, 0% schema coverage, no output schema, and no annotations, the description is far too brief. It covers the core purpose but omits essential details about parameter effects, error handling, sequencing behavior, and return values. A more complete description is needed for an agent to use this tool effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0% parameter description coverage, and the description adds no explanation for any of the 9 parameters (e.g., delayMs, qualityMode, maxRetries). It only indirectly references a 'short delay,' but does not map to the delayMs parameter or other settings. This leaves the agent without guidance for setting correct values.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('Add devices') and resource ('Packet Tracer'), with a specific execution mode ('one by one with a short delay'). It distinguishes itself from sibling 'ptv_addDevice' by indicating batch sequential addition, and specifies the use case ('screen recordings').

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit usage guidance: 'Use for screen recordings where viewers should see devices appear sequentially.' This clarifies the intended context, but it does not mention when to avoid this tool (e.g., when sequential delay is not desired) or explicitly name alternatives like 'ptv_addDevice'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.