Blueprint Chart
NPM · @BLUEPRINT-CHART/MCP · SCANNED AUG 3
The open chart format an LLM writes and the browser renders — to interactive, accessible SVG.
Available components
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 →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (202 of 207), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (202 of 207), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to blueprint-chart/mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 35 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability85
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 2939 tokens (~44/item across 66 items; 11 tools + 55 resources), lean.Pass
- 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
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.
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · @blueprint-chart/mcp
claude mcp add blueprint-chart-mcp -- npx -y @blueprint-chart/mcp
codex mcp add blueprint-chart-mcp -- npx -y @blueprint-chart/mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"blueprint-chart-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"@blueprint-chart/mcp"
],
"enabled": true
}
}
} openclaw mcp add blueprint-chart-mcp --command npx --arg -y --arg @blueprint-chart/mcp
mcp_servers:
blueprint-chart-mcp:
command: "npx"
args: ["-y", "@blueprint-chart/mcp"] {
"mcpServers": {
"blueprint-chart-mcp": {
"command": "npx",
"args": [
"-y",
"@blueprint-chart/mcp"
]
}
}
} 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.
- 2 Aug 26 +37
- Malware scan: pass → unverified ▼ security
- GHSA-frvp-7c67-39w9 no longer affects this package ▲ security
- Provenance: unverified → pass ▲ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- The attested source repository moved: blueprint-chart/mcp security
- Schema quality: 100 → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- License: unverified → pass ▲ functional
- Schema quality: unverified → excellent ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Maintenance: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Licence: MIT functional
- 1 Aug 26 +15
- Malware scan: unverified → pass ▲ security
- 31 Jul 26 +18
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 −16
- Malware scan: pass → unverified ▼ security
- Security disclosure: unverified → fail ▼ functional
- Dependency health: unverified → partial ▲ functional
- 28 Jul 26 −33
- Install scripts: pass → unverified ▼ security
- Provenance: pass → unverified ▼ security
- Known CVEs: fail → unverified ▼ security
- GHSA-frvp-7c67-39w9 no longer affects this package ▲ security
- The attested source repository moved: blueprint-chart/mcp security
- License: pass → unverified ▼ functional
- Maintenance: pass → unverified ▼ functional
- Dependency health: partial → unverified ▼ functional
- Licence: MIT functional
- 27 Jul 26 +15
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 42
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 3 Aug 2026 · Analysed npm/@blueprint-chart/[email protected]
Provenance verified
Ecosystem: npm · Outcome: verified
Reason: verified
- Source repo:
- blueprint-chart/mcp
- Certificate issuer:
- https://token.actions.githubusercontent.com
- Certificate SAN:
- https://github.com/blueprint-chart/mcp/.github/workflows/release.yml@refs/heads/main
- Rekor log index:
- 2006185784
- Predicate type:
- https://slsa.dev/provenance/v1
- Subject digest:
- sha512:e16d7d37e25e3f716d0e1f7353385c5edb265702b8305de87c7c918b2ed44af704c10f20506648484f934a8bb37b16b4ff780e010a028071e7b4acd9a
- Discovery method:
- attestation_endpoint
Dependencies 202 packages
202 packages in the resolved dependency tree · 199 deprecated · 69 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
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.
describe_chart_type ~115
Return everything an LLM needs to write a .bpc for a given chart type — typically your second call, after recommend_chart_type. Input: { chartType: "bar-horizontal" } (or any canonical/alias name). Returns summary, when-to-use, when-NOT-to-use, full property list with enum choices, data-shape example, and a pointer to a canonical sample.
| Name | Type | Req | Description |
|---|---|---|---|
| chartType | string | yes | A chart type or alias to describe, e.g. "bar-horizontal" or "line". |
| Name | Type | Req | Description |
|---|---|---|---|
| aliases | array | yes | Accepted alias names. |
| dataShape | object | yes | The data shape this chart type expects. |
| directives | array | yes | Supported directives. |
| docsUrl | string | — | Public docs URL. |
| exampleSlug | string | — | Id of a canonical sample for this type. |
| name | string | yes | Canonical chart-type identifier. |
| properties | array | yes | Supported chart properties. |
| summary | string | yes | One-line description. |
| whenNotToUse | array | yes | Situations to avoid it. |
| whenToUse | array | yes | Situations this chart type fits. |
No examples provided.
export_chart ~177
Turn a validated .bpc source into shareable URLs plus an inline visual preview of what was published. Returns { copyUrl, embedUrl, urls?, frame } and a scene-0 PNG image block so you can confirm the chart looks right before sharing. copyUrl opens an editable copy in the editor; embedUrl is a read-only iframe target; urls.{png,svg,bpc} (when MCP_PUBLIC_URL is set) are stateless rendered-image/source links. Set modelVisible:false to show the preview to the user only. Requires BLUEPRINT_CHART_EDITOR_URL; preview failures never block the export.
| Name | Type | Req | Description |
|---|---|---|---|
| modelVisible | boolean | — | When false, the preview image is shown to the user but not sent to the model. |
| source | string | yes | The .bpc chart source to validate and publish to shareable URLs. |
| Name | Type | Req | Description |
|---|---|---|---|
| copyUrl | string | yes | Editor URL that opens an editable copy of the chart. |
| embedUrl | string | yes | Read-only iframe-embeddable URL. |
| frame | object | yes | Frame metadata extracted from the chart. |
| previewOmitted | boolean | — | Set when the scene-0 preview render failed. |
| urls | object | — | Stateless hosted render URLs (only when MCP_PUBLIC_URL is set). |
No examples provided.
get_example ~89
Return a canonical .bpc example. Pass { name } for a specific sample id, { chartType } for the first sample of that type, or no args for a starter sample.
| Name | Type | Req | Description |
|---|---|---|---|
| chartType | string | — | Return the first canonical sample for this chart type (or alias). |
| name | string | — | Return a specific sample by its id, e.g. "co2-emissions". |
| Name | Type | Req | Description |
|---|---|---|---|
| chartType | string | yes | Chart type of the sample. |
| dsl | string | yes | The full .bpc source of the sample. |
| id | string | yes | Sample id. |
| title | string | yes | Sample title. |
No examples provided.
get_grammar ~95
Return the .bpc DSL grammar as markdown. Pass { section: "chart" | "data" | "properties" | "scenes" | "annotations" } for a focused subset, or no args for the full grammar.
| Name | Type | Req | Description |
|---|---|---|---|
| section | string | — | Limit to one grammar section: "chart", "properties", "scenes", or "annotations". Omit (or "all") for the full grammar. |
| Name | Type | Req | Description |
|---|---|---|---|
| section | string | yes | The grammar section returned. |
| text | string | yes | The grammar reference as markdown. |
No examples provided.
inspect_dsl ~73
Parse a .bpc source and return a structured summary: chartType, scenes, data (rowCount, entryCount, labels, seriesNames, multiSeries), annotation/colorize/highlight/area-fill presence flags, series count.
| Name | Type | Req | Description |
|---|---|---|---|
| source | string | yes | The .bpc chart source to parse and summarize. |
| Name | Type | Req | Description |
|---|---|---|---|
| chartType | string | yes | Declared chart type. |
| data | object | yes | Summary of the data block. |
| hasAnnotations | boolean | yes | Whether any annotation/range/note is present. |
| hasAreaFills | boolean | yes | Whether any area-fill is present. |
| hasColorizes | boolean | yes | Whether any non-highlight colorize is present. |
| hasHighlights | boolean | yes | Whether any highlight is present. |
| scenes | array | yes | Per-scene summaries (always at least one). |
| seriesCount | integer | yes | Number of series. |
No examples provided.
list_chart_types ~40
Reference list of every chart type the renderer supports, with aliases and one-line summaries. To choose a type for a dataset, call recommend_chart_type instead.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| chartTypes | array | yes | Every renderable chart type. |
No examples provided.
list_palettes ~32
List every named colour palette with its label and hex colours, for use in `colorPalette = "<name>"`.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| palettes | array | yes | Every named palette. |
No examples provided.
recommend_chart_type ~145
Start here before writing any .bpc. Takes column types, row count, and the user's goal (a prose sentence — it determines the chart family: comparison/ranking/part-to-whole/composition-over-time/trend/range). Returns ranked chart-type recommendations plus guidance.
| Name | Type | Req | Description |
|---|---|---|---|
| columnTypes | array | yes | The type of each data column, in order: "string", "number", or "date". |
| goal | string | — | Optional prose sentence describing what the chart should show. Determines the chart family (comparison / ranking / part-to-whole / composition-over-time / trend / range). |
| rowCount | integer | yes | Number of data rows in the dataset. |
| Name | Type | Req | Description |
|---|---|---|---|
| guidance | string | — | Prose next-step guidance for the top recommendation. |
| recommendations | array | yes | Ranked chart-type recommendations, best first. |
No examples provided.
render ~363
Render a .bpc source to SVG (default), PNG, or HTML. With format:"png" the chart comes back as an inline IMAGE you and the user can both see — render, look at the result, fix issues, re-render. Always returns structured frame metadata. When MCP_PUBLIC_URL is set the response includes stateless `urls` ({png,svg,bpc}). Set modelVisible:false to display the image to the user without spending model image tokens. Pass `save:<path>` to write the output into MCP_FS_WRITE_DIR instead of returning it inline. Width/height are capped at 1600; PNGs are rasterized at 2× for retina sharpness.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | — | Output format. "svg" (default) and "html" return text; "png" returns an inline image you and the user can both see. |
| height | integer | — | Output height in pixels (max 1600). |
| modelVisible | boolean | — | When false, the inline PNG is shown to the user but not sent to the model (saves image tokens on bulk renders). |
| save | string | — | Optional output path, always resolved inside MCP_FS_WRITE_DIR (relative paths are joined to it; absolute paths are re-anchored under it). When set, the output is written to disk and omitted from the… |
| scene | integer | — | Zero-based scene index to render, for charts that define scenes. Omit for the base chart (scene 0). |
| source | string | yes | The .bpc chart source to render. |
| width | integer | — | Output width in pixels (max 1600). PNGs are rasterized at 2x for retina sharpness. |
| Name | Type | Req | Description |
|---|---|---|---|
| frame | object | yes | Frame metadata extracted from the chart. |
| mimeType | string | yes | MIME type of the rendered output. |
| savedTo | string | — | Absolute path the output was written to, when `save` was used. |
| urls | object | — | Stateless hosted render URLs (only when MCP_PUBLIC_URL is set). |
| urlsOmitted | string | — | Set when URLs were omitted because the source exceeded the URL cap. |
No examples provided.
search_examples ~99
Find canonical .bpc examples by topic keywords and/or chart type. Returns ranked pointers { id, title, description, chartType } — call get_example with an id to fetch the full DSL.
| Name | Type | Req | Description |
|---|---|---|---|
| chartType | string | — | Restrict results to this chart type (or alias). |
| limit | integer | — | Maximum number of results to return (max 20). |
| query | string | — | Topic keywords to match against sample titles and descriptions. |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | Ranked sample pointers, best first. |
No examples provided.
validate_dsl ~65
Parse and semantically validate a .bpc source. Returns { valid, errors[], warnings[] }. Errors include unknown chart types, unknown properties, and empty data blocks with nearest-neighbour suggestions.
| Name | Type | Req | Description |
|---|---|---|---|
| source | string | yes | The .bpc chart source to parse and validate. |
| Name | Type | Req | Description |
|---|---|---|---|
| errors | array | yes | Fatal structural and value-level errors. |
| valid | boolean | yes | True when the source parses and passes semantic validation. |
| warnings | array | yes | Non-fatal advisories. |
No examples provided.