XamlMcp
NUGET · XAMLMCP.SERVER · SCANNED AUG 7
Inspect and drive Avalonia, WPF, WinUI, and .NET MAUI apps through MCP.
Available components
Dead
Every channel of this server has been unreachable for long enough to be marked dead. Its trust score is pinned to 0 and does not recover automatically: even once the server responds again it stays dead until it is manually reinstated.
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security50
- No malware found by supply-chain analysis.Pass
- Known CVEs could not be checked: we could not find this package in its registry.Unverified
- Install-script risk not yet assessed.Unverified
- Dependency health could not be checked: we could not find this package in its registry.Unverified
Provenance & Transparency26
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: the registry has no such package, so there's no artefact to verify. View diagnostics → Fail
- License check failed: the registry has no such package, so no license can be read.Fail
- Maintenance check failed: the registry has no such package, so there's no release history to read.Fail
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability60
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2618 tokens (~174/item across 15 items; 15 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety–
Not scored yet: our latest scan of this package recorded no findings here. That is usually because the category is newer than the scan, or because we have not captured the MCP schema this package serves yet. It fills in the next time we score it.
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
How do I install the XamlMcp MCP server?
XamlMcp runs locally as a NuGet package, launched with dnx XamlMcp.Server@1.0.0-preview.2 --yes. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.
nuget · XamlMcp.Server
claude mcp add trrahul-xamlmcp -- dnx XamlMcp.Server@1.0.0-preview.2 --yes
{
"mcpServers": {
"trrahul-xamlmcp": {
"command": "dnx",
"args": [
"XamlMcp.Server@1.0.0-preview.2",
"--yes"
]
}
}
} {
"servers": {
"trrahul-xamlmcp": {
"command": "dnx",
"args": [
"XamlMcp.Server@1.0.0-preview.2",
"--yes"
]
}
}
} codex mcp add trrahul-xamlmcp -- dnx XamlMcp.Server@1.0.0-preview.2 --yes
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"trrahul-xamlmcp": {
"type": "local",
"command": [
"dnx",
"XamlMcp.Server@1.0.0-preview.2",
"--yes"
],
"enabled": true
}
}
} mcp_servers:
trrahul-xamlmcp:
command: "dnx"
args: ["XamlMcp.Server@1.0.0-preview.2", "--yes"] {
"McpServers": {
"trrahul-xamlmcp": {
"Transport": "stdio",
"Command": "dnx",
"Arguments": [
"XamlMcp.Server@1.0.0-preview.2",
"--yes"
]
}
}
} {
"mcpServers": {
"trrahul-xamlmcp": {
"command": "dnx",
"args": [
"XamlMcp.Server@1.0.0-preview.2",
"--yes"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 7 Aug 26 −47
The score moved with no change recorded against any check. We would rather say so than guess.
- 6 Aug 26 +27
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Schema quality: fail functional
- First check of Schema quality: good functional
- First check of Tool coverage: 100 functional
- 2 Aug 26 +15
- Malware scan: unverified → pass ▲ security
- 1 Aug 26 5
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 7 Aug 2026 · Analysed nuget/XamlMcp.Server@1.0.0-preview.2
Provenance Package not found
The registry answered that no such package exists, so no provenance could be looked up.
| Result | Package not found |
|---|---|
| Ecosystem | nuget |
| Reason | Signature present, unreadable |
Background: How many MCP packages publish verified provenance →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
action ~374
Invokes an automation pattern or command slot on a node; call props first to see which patterns a node supports. Waits settleMs (default 250 ms) to observe effects; set observe: false for rapid sequences. A non-"none" snapshot invalidates every previously issued nodeId. outcome-indeterminate means the action timed out mid-flight and may still have applied - re-query before trusting state.
| Name | Type | Req | Description |
|---|---|---|---|
| args | string|null | – | value: the text to set; rangeValue: parsed as double; command: optional parameter override. |
| argsKind | string | – | The kind of args (e.g. "string", "number"); default "string". |
| commandOwner | string|null | – | Command-slot selection when ambiguous. |
| commandProperty | string|null | – | Command-slot selection when ambiguous. |
| nodeId | integer | yes | The node's id, from tree/search. |
| observe | boolean | – | False skips the fingerprint/settle/diff observe cycle entirely. |
| pattern | string | yes | invoke | toggle | value | rangeValue | expand | collapse | select | addToSelection | removeFromSelection | scroll | command. |
| pixelHash | boolean | – | Also compare a per-window pixel hash via the render path. |
| scrollHorizontal | number|null | – | scroll: horizontal percent 0..100; omit for no horizontal scroll. |
| scrollVertical | number|null | – | scroll: vertical percent 0..100; omit for no vertical scroll. |
| settleMs | integer | – | Quiet period after the action before the second fingerprint, in ms; 0..5000. |
| snapshot | string | – | "none" | "targetSubtree" | "window"; non-"none" mints a fresh scoped snapshot. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
No output schema declared.
No examples provided.
ancestors ~71
Returns a node's visual-parent chain, nearest ancestor first, up to the top-level root. Re-query tree/search on stale-snapshot/stale-node.
| Name | Type | Req | Description |
|---|---|---|---|
| nodeId | integer | yes | The node's id, from tree/search. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
No output schema declared.
No examples provided.
assets ~25
Lists opaque asset identifiers issued by the attached agent; pass one unchanged to open-asset.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
attach ~81
Attaches to one app from list-apps, replacing any previous attachment, and returns per-tool capability flags. Supply exactly one of instanceId (preferred) or pid.
| Name | Type | Req | Description |
|---|---|---|---|
| instanceId | string|null | – | Opaque app instance id from list-apps. |
| pid | integer|null | – | Desktop pid from list-apps; use only when instanceId is omitted. |
No output schema declared.
No examples provided.
input ~522
Synthesizes one pointer/keyboard/text input. click/move/wheel need a node ref or root x/y; key/type act on keyboard focus. mechanism "raw" (capability-gated) injects through the real input pipeline and attributes the input to the top-level root, not the leaf node. Waits settleMs (default 250 ms) to observe effects; set observe: false for rapid sequences. A non-"none" snapshot invalidates every previously issued nodeId. outcome-indeterminate means the input timed out mid-flight and may still have applied - re-query before trusting state.
| Name | Type | Req | Description |
|---|---|---|---|
| button | string | – | Click: "left" | "right" | "middle". |
| clickCount | integer | – | Click: baked into the press args (no repeat loop). |
| deltaX | number | – | Wheel delta on the X axis. |
| deltaY | number | – | Wheel delta on the Y axis. |
| direction | string | – | Key: "down" | "up" | "press" (= down+up). |
| key | string|null | – | A protocol key name; agents map unavailable defined names to unsupported-capability. |
| kind | string | yes | "click" | "move" | "wheel" | "key" | "type". |
| mechanism | string|null | – | Omit to select routed when input-routed is advertised, otherwise raw; explicit routed or raw wins. |
| modifiers | string | – | Comma list of control|shift|alt|meta. |
| nodeId | integer|null | – | Target node's id, from tree/search; omit with snapshotId to position on the primary root. |
| observe | boolean | – | False skips the fingerprint/settle/diff observe cycle entirely. |
| pixelHash | boolean | – | Also compare a per-window pixel hash via the render path. |
| settleMs | integer | – | Quiet period after the input before the second fingerprint, in ms; 0..5000. |
| snapshot | string | – | "none" | "targetSubtree" | "window"; non-"none" mints a fresh scoped snapshot. |
| snapshotId | integer|null | – | Target node's snapshotId, from tree/search; omit with nodeId to position on the primary root. |
| text | string|null | – | Type: the text to insert. |
| x | number|null | – | Root coordinates; required when no ref is given for click/move/wheel. |
| y | number|null | – | Root coordinates; required when no ref is given for click/move/wheel. |
No output schema declared.
No examples provided.
list-apps ~38
Lists running apps with an attached XamlMcp agent. Call first; pass a result's instanceId (or desktop pid) to attach.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
open-asset ~87
Reads one asset by its opaque identifier from assets. Returns an image block for image/*, decoded UTF-8 text for text/JSON/XML types (including XAML), and base64 text otherwise.
| Name | Type | Req | Description |
|---|---|---|---|
| maxBytes | integer | – | Client-requested cap on bytes read; the server ceiling still applies. |
| uri | string | yes | The opaque asset identifier returned by assets, passed unchanged. |
No output schema declared.
No examples provided.
props ~111
Enumerates a node's properties (owner type, name, value, priority, read-only) plus its automation patterns and command slots - call before action to see what a node supports. Re-query tree/search on stale-snapshot/stale-node.
| Name | Type | Req | Description |
|---|---|---|---|
| filter | string|null | – | Case-insensitive substring match against each property's name; omit for every property. |
| nodeId | integer | yes | The node's id, from tree/search. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
No output schema declared.
No examples provided.
pseudo-class ~247
Adds or removes a pseudo-class (e.g. ":pressed") on a node. Waits settleMs (default 250 ms) to observe effects; set observe: false for rapid sequences. A non-"none" snapshot invalidates every previously issued nodeId. outcome-indeterminate means the toggle timed out mid-flight and may still have applied - re-query before trusting state.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | The pseudo-class name, e.g. ":pressed" or "pressed". |
| nodeId | integer | yes | The node's id, from tree/search. |
| observe | boolean | – | False skips the fingerprint/settle/diff observe cycle entirely. |
| on | boolean | yes | True adds the pseudo-class, false removes it. |
| pixelHash | boolean | – | Also compare a per-window pixel hash via the render path. |
| settleMs | integer | – | Quiet period after the toggle before the second fingerprint, in ms; 0..5000. |
| snapshot | string | – | "none" | "targetSubtree" | "window"; non-"none" mints a fresh scoped snapshot. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
No output schema declared.
No examples provided.
resources ~90
Enumerates resources visible to a node (nearest framework resource scopes, then application resources), or application resources only if no node is given.
| Name | Type | Req | Description |
|---|---|---|---|
| maxResources | integer | – | Cap on emitted resource rows. |
| nodeId | integer|null | – | Node's id; omit with snapshotId for application resources only. |
| snapshotId | integer|null | – | Node's snapshotId; omit with nodeId for application resources only. |
No output schema declared.
No examples provided.
screenshot ~185
Renders a node to PNG, or the first app root if no node is given. The render is local-origin (a snapshot of the visual, not a screen crop) through a software path: GPU/native-interop content is not captured, and popups/overlays are separate roots - capture them by ref. Set background on a transparent capture (text renders poorly without one).
| Name | Type | Req | Description |
|---|---|---|---|
| background | string|null | – | Background fill as framework color text (e.g. "#FFFF0000"); omit for a transparent background. |
| maxBytes | integer | – | Cap on the encoded PNG byte length; exceeding it reports too-large instead of an oversized response. |
| nodeId | integer|null | – | Node's id; omit with snapshotId to capture the first app root. |
| snapshotId | integer|null | – | Node's snapshotId; omit with nodeId to capture the first app root. |
No output schema declared.
No examples provided.
search ~220
Searches the tree by type/name/style class/pseudo-class/text, minting a new snapshot. Give at least one criterion; criteria AND-combine. Node ids are valid only for the returned snapshotId, as with tree.
| Name | Type | Req | Description |
|---|---|---|---|
| maxResults | integer | – | Cap on returned matches (the page); does not limit the total match count. |
| name | string|null | – | Name to match exactly (ordinal) against the node's Name. |
| offset | integer | – | Number of matches to skip before the returned page. |
| pseudoClass | string|null | – | A pseudo-class Classes entry; a leading ':' is added if missing. |
| styleClass | string|null | – | A non-pseudo Classes entry (one not starting with ':'), matched exactly (ordinal). |
| text | string|null | – | Case-insensitive substring match against the node's extracted text. |
| type | string|null | – | Type name to match per typeMatch; case-insensitive either way. |
| typeMatch | string | – | "exact" or "substring" (default) matching for type. |
No output schema declared.
No examples provided.
set-prop ~335
Writes one property on a node; unset: true clears the local value instead. Waits settleMs (default 250 ms) to observe effects; set observe: false for rapid sequences. A non-"none" snapshot invalidates every previously issued nodeId. outcome-indeterminate means the write timed out mid-flight and may still have applied - re-query before trusting state.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | The property name (ordinal match against the attached framework's property system). |
| nodeId | integer | yes | The node's id, from tree/search. |
| observe | boolean | – | False skips the fingerprint/settle/diff observe cycle entirely. |
| owner | string|null | – | Owner type short name; needed only when name is ambiguous across several distinct registered properties. |
| pixelHash | boolean | – | Also compare a per-window pixel hash via the render path. |
| settleMs | integer | – | Quiet period after the write before the second fingerprint, in ms; 0..5000. |
| snapshot | string | – | "none" | "targetSubtree" | "window"; non-"none" mints a fresh scoped snapshot. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
| unset | boolean | – | True clears the local value (ClearValue) instead of writing value; wins over value/valueKind. |
| value | string|null | – | The value to write, as text; ignored when unset is true. |
| valueKind | string | – | The kind of value (e.g. "string", "number", "boolean", "enum", "color"); default "string". |
No output schema declared.
No examples provided.
styles ~73
Returns the resolved style frames applied to a node. Capability-gated - check the styles flag from attach. Re-query tree/search on stale-snapshot/stale-node.
| Name | Type | Req | Description |
|---|---|---|---|
| nodeId | integer | yes | The node's id, from tree/search. |
| snapshotId | integer | yes | The node's snapshotId, from tree/search. |
No output schema declared.
No examples provided.
tree ~159
Walks the visual or logical tree from the given root (every app root if none), minting a new snapshot. Node ids are valid only for the returned snapshotId; any later tree/search call invalidates them - re-query on stale-snapshot/stale-node.
| Name | Type | Req | Description |
|---|---|---|---|
| depth | integer|null | – | Levels below each root to include; defaults to and cannot exceed 24. |
| maxNodes | integer | – | Cap on emitted nodes across the whole walk. |
| nodeId | integer|null | – | Root node's id; omit with snapshotId to walk every app root. |
| scope | string | – | "visual" or "logical". |
| snapshotId | integer|null | – | Root node's snapshotId; omit with nodeId to walk every app root. |
No output schema declared.
No examples provided.
What is the XamlMcp MCP server?
XamlMcp is an MCP server listed in the public MCP registry as io.github.trrahul/xamlmcp. Inspect and drive Avalonia, WPF, WinUI, and .NET MAUI apps through MCP. This page covers its NuGet package (XamlMcp.Server).
Is the XamlMcp MCP server safe to use?
XamlMcp scores 0 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the XamlMcp MCP server expose?
XamlMcp exposes 15 tools: open-asset, assets, resources, search, set-prop, and 10 more. Their descriptions and schemas cost roughly 2,618 tokens of context every time the server is loaded.
Is the XamlMcp MCP server still maintained?
XamlMcp has been unreachable for long enough that we treat it as dead, and its score is pinned to zero. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.