# FilingLens Local SEC Fact Comparison (mcpb · filinglens-0.1.0.mcpb)

Compare the same SEC fact and period at two filing cutoffs locally, with source evidence.

- Trust score: 40/100 (low)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- mcpb · `filinglens-0.1.0.mcpb`: 40/100 (this document), [markdown](https://verifymcp.io/servers/f-tiger-filinglens/filinglens.md), [page](https://verifymcp.io/servers/f-tiger-filinglens/filinglens)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/f-tiger/agi-site/releases/download/fleet-mcp-registry-2026-10-10/filinglens-0.1.0.mcpb`
- Transport: `stdio`
- SHA-256: `717ac5329a4df5cbf5de02015134de5138a427f06d2c76748132c0afa9993b0b`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Supply Chain Security**: 25/100
  - 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.
  - Known CVEs were checked across the 3 of 3 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - 0 of 3 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 32/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 7 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 55/100
  - 50% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 245 tokens (~61/item across 4 items; 3 tools + 1 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 40% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

**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.

## Install

### How do I install the FilingLens Local SEC Fact Comparison MCP server?

FilingLens Local SEC Fact Comparison 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. Before opening it, check the file's SHA-256 matches the one the MCP registry declares for it, 717ac5329a4df5cbf5de02015134de5138a427f06d2c76748132c0afa9993b0b; the commands to do that are on this page. If it does not match, do not open it.

- Download bundle: `https://github.com/f-tiger/agi-site/releases/download/fleet-mcp-registry-2026-10-10/filinglens-0.1.0.mcpb`
- SHA-256: `717ac5329a4df5cbf5de02015134de5138a427f06d2c76748132c0afa9993b0b`

### Verify on macOS / Linux

```bash
echo "717ac5329a4df5cbf5de02015134de5138a427f06d2c76748132c0afa9993b0b  filinglens-0.1.0.mcpb" | shasum -a 256 -c
```

### Verify on Windows (PowerShell)

```powershell
(Get-FileHash -Algorithm SHA256 .\filinglens-0.1.0.mcpb).Hash -eq "717ac5329a4df5cbf5de02015134de5138a427f06d2c76748132c0afa9993b0b"
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-14 (score 40, +26)

- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → 50
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: fair
- [functional] First check of Destructive annotations: pass
- [functional] First check of Tool coverage: 40
- [functional] First check of Schema quality: pass
- [functional] First check of Tool coverage: 100

### 2026-10-12 (score 14)

First indexed and scored.

## MCP tools (3)

### `filinglens_example` (~48 tokens)

Learn with a fictional filing comparison

Return clearly fictional same-period revenue observations and cutoffs. The -2000000 difference is a demonstration, not a real company restatement. Sample accession numbers must never be presented as real filings.

### `filinglens_periods` (~88 tokens)

Inspect exact fact periods and units

List available exact periods from supplied SEC companyconcept data. Use pagination. Never mix a quarter and a year-to-date period, units or entities.

Input parameters:

- `data` (object, required): One SEC companyconcept JSON object obtained by the host from the official SEC API. No arbitrary URLs, file reads or network requests by this server.
- `limit` (integer)
- `offset` (integer)

Output parameters:

- `cik` (string)
- `entity` (string)
- `label` (string)
- `next_offset`
- `observations` (integer)
- `periods` (array)
- `periods_total` (integer)
- `tag` (string)

### `filinglens_compare` (~105 tokens)

Compare the same fact at two filing cutoffs

Compare one exact concept, unit and start/end period as reported by the latest eligible filing at each supplied as-of date. Same-day value conflicts yield incomplete. Return source accession links and exact absolute difference. This does not classify restatements, explain causes or recommend trades.

Input parameters:

- `data` (object, required): One SEC companyconcept JSON object obtained by the host from the official SEC API. No arbitrary URLs, file reads or network requests by this server.
- `options` (object, required)

Output parameters:

- `absolute_change` (string|null)
- `after` (object)
- `as_of` (object)
- `before` (object)
- `cik` (string)
- `entity` (string)
- `investment_recommendation` (boolean)
- `limits` (array)
- `period` (object)
- `restatement_determined` (boolean)
- `scope` (string)
- `status` (string)
- `tag` (string)
- `taxonomy` (string)
- `unit` (string)
- `version` (string)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/f-tiger-filinglens/filinglens#diagnostics

## Score history

- 2026-10-18: 40
- 2026-10-17: 40
- 2026-10-16: 40
- 2026-10-15: 40
- 2026-10-14: 40
- 2026-10-13: 14
- 2026-10-12: 14

## Common questions

### What is the FilingLens Local SEC Fact Comparison MCP server?

FilingLens Local SEC Fact Comparison is an MCP server listed in the public MCP registry as io.github.f-tiger/filinglens. Compare the same SEC fact and period at two filing cutoffs locally, with source evidence. This page covers its MCPB bundle (https://github.com/f-tiger/agi-site/releases/download/fleet-mcp-registry-2026-10-10/filinglens-0.1.0.mcpb).

### Is the FilingLens Local SEC Fact Comparison MCP server safe to use?

FilingLens Local SEC Fact Comparison scores 40 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 FilingLens Local SEC Fact Comparison MCP server expose?

FilingLens Local SEC Fact Comparison exposes 3 tools: filinglens_example, filinglens_periods, filinglens_compare. Their descriptions and schemas cost roughly 241 tokens of context every time the server is loaded.

## Links

- Repository: https://github.com/f-tiger/agi-site
- Website: https://filinglens.agiscorecard.com/
- Changelog RSS feed: https://verifymcp.io/servers/f-tiger-filinglens/filinglens.xml
- Changelog JSON feed: https://verifymcp.io/servers/f-tiger-filinglens/filinglens.json
- HTML version of this page: https://verifymcp.io/servers/f-tiger-filinglens/filinglens