Commerce Evidence Toolkit
MCPB · COMMERCE-EVIDENCE-TOOLKIT-0.1.0.MCPB
Read-only local evidence checks for product records, feed snapshots, and dimensions.
Available components
Last scanned (21 hours ago)
Scores higher than 91% of MCPB servers
Category E-commerce
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 Security23
- No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.Unverified
- Known CVEs were checked across the 92 of 92 dependencies we could resolve, so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- 31 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 23 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability64
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 323 tokens (~107/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management77
- Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 18 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 57. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Oct 26 +2
No change was recorded against any check on this day. Stability & Change Management went from 40 to 50. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.
- 7 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 40. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Oct 26 +4
- Stability: unverified → 0.27 ▲ functional
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
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 18 Oct 2026 · Analysed mcpb/https://github.com/iamgeorgekelly/agentic-commerce-field-guide/releases/download/v0.1.0/commerce-evidence-toolkit-0.1.0.mcpb
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | mcpb |
| Reason | No attestation published |
Background: How many MCP packages publish verified provenance →
Dependencies 92 packages
| Packages resolved | 92 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
compare_dimensions ~106
Compare supplied length, width and height using exact decimal unit conversion. Input requires schemaVersion 1.0, source and candidate with itemId, basis product/package, evidenceRef, and each axis as {value: decimal string, unit: mm/cm/m/in}; toleranceMm is an explicit decimal string. Same item, basis and named axes required. Unknowns yield hold. Does not establish physical fit or source truth. See examples/dimensions.json.
| Name | Type | Req | Description |
|---|---|---|---|
| input | object | yes | – |
No output schema declared.
No examples provided.
compare_feed_snapshots ~91
Compare supplied source and feed snapshots for exact item IDs, current USD prices, sale state and availability. Requires schemaVersion 1.0, profile openai-native-stable, explicit asOf, maxAgeHours, capturedAt and evidenceRef. Unresolved evidence yields hold with no proposed changes. No fetches or feed writes. See examples/feed-snapshots.json.
| Name | Type | Req | Description |
|---|---|---|---|
| input | object | yes | – |
No output schema declared.
No examples provided.
review_product_record ~79
Review one supplied product record using a selected canonical-field subset and positive USD prices. Optional mapping transforms only explicit supplied fields. Missing or conflicting facts remain on hold. Does not fetch URLs, verify GTIN assignment, or validate a complete provider upload.
| Name | Type | Req | Description |
|---|---|---|---|
| evidence | object | – | – |
| method | string | – | – |
| record | object | yes | – |
No output schema declared.
No examples provided.
How do I install the Commerce Evidence Toolkit MCP server?
Commerce Evidence Toolkit ships as an MCPB bundle, a single file you download and open in an MCP host that supports MCPB bundles, such as Claude Desktop. The host reads the launch command from the bundle's own manifest, so there is no command to copy. The MCP registry declares no SHA-256 for this bundle, so there is no published digest to check the download against.
mcpb · commerce-evidence-toolkit-0.1.0.mcpb
Download bundleThe MCP registry declares no SHA-256 for this bundle, so there is no published digest to check it against. Open it with an MCPB-capable host such as Claude Desktop.
What is the Commerce Evidence Toolkit MCP server?
Commerce Evidence Toolkit is an MCP server listed in the public MCP registry as io.github.iamgeorgekelly/commerce-evidence-toolkit. Read-only local evidence checks for product records, feed snapshots, and dimensions. This page covers its MCPB bundle (https://github.com/iamgeorgekelly/agentic-commerce-field-guide/releases/download/v0.1.0/commerce-evidence-toolkit-0.1.0…).
Is the Commerce Evidence Toolkit MCP server safe to use?
Commerce Evidence Toolkit scores 54 out of 100 on VerifyMCP. It declares no install or post-install scripts. 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 Commerce Evidence Toolkit MCP server expose?
Commerce Evidence Toolkit exposes 3 tools: review_product_record, compare_feed_snapshots, compare_dimensions. Their descriptions and schemas cost roughly 276 tokens of context every time the server is loaded.
What licence is the Commerce Evidence Toolkit MCP server under?
Commerce Evidence Toolkit declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.