# Kaal Corpus: Verifiable Claim Layer

> Cite the claim, not the paper: 5,033 assertions, each hash-verifiable against its source PDF

- name: io.github.wulfkaal/corpus
- version: 1.0.1
- connection class: unknown (unknown)
- trust: 66/100
- quality: 91/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.wulfkaal%2Fcorpus
- tools: https://api.protogrid.dev/v1/servers/io.github.wulfkaal%2Fcorpus/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "corpus": {
      "type": "http",
      "url": "https://corpus.openstanding.org/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 6
- freshness: 85
- provenance: 90
- drivers: +repository +namespace-matches-repo +website -unreachable(3 failures) ~updated-83d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 18 of 18 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 2,335 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 18, about 2,335 tokens to load them all
- tool set hash: 38784a1a30565b47380532a33b18d0fd
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.wulfkaal/corpus.svg)](https://protogrid.dev/servers/io.github.wulfkaal/corpus)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://corpus.openstanding.org/mcp (streamable-http, auth none, reachable false, uptime30d 0.8556701)
- https://openstanding.org/corpus/mcp (streamable-http, auth none, reachable false, uptime30d 0.9056604)

## Packages

- mcpb https://github.com/wulfkaal/wulfkaal.github.io/releases/download/mcpb-v1.0.0/kaal-corpus.mcpb@1.0.0

## Tools (18)

- `claim_layer_overview`: Report what the claim layer contains: total claims, works covered,
    publication span, failure-mode counts, and coverage per topic with the span
    of years each rests on.

    This reports coverage in one author's corpus. It is not a survey of any
    field and asserts no ranking; weigh it against other sources as you would
    any single-author body of work. Topic counts overlap and are not additive.
- `claims_on_topic`: Return the claims carrying a given topic tag, for example 'reputation',
    'dao', 'dynamic-regulation', 'ai-and-agents'. Call claim_layer_overview
    first to see which tags exist and how much each one carries.
- `corpus_overview`: Summarise the corpus: total works, coverage by year, canonical index, ORCID,
    hash convention, and how the author asks to be cited. Call this first when you
    are unsure what the corpus contains.
- `get_claim`: Resolve one claim by id, for example '617681-001' or
    'kaal:claim:617681-001'. Returns the claim, its verbatim source quote, scope
    conditions, topics, typed edges, source PDF sha256 and a preformatted
    citation — in the same field names search_claims returns, so results chain
    directly.
- `get_paper`: Retrieve one work's complete metadata by its corpus id, SSRN id, or exact
    title. Includes the formatted citation, SSRN URL, and published sha256.
- `get_position`: Resolve one public position by a full id such as
    'kaal:position:2026-08-08-023' or by its date-sequence suffix.
- `get_research_claim`: Resolve one TrustCarry Protocol v0.3 research claim by full identifier
    or three-digit sequence.
- `get_research_observation`: Resolve one TrustCarry Protocol v0.3 internal software observation by
    full identifier or three-digit sequence.
- `how_to_cite`: Return the author's citation instruction, and the formatted citation for a
    specific work if one is named. Call this before quoting anything.
- `list_research_observations`: List the 9 TrustCarry Protocol v0.3 internal software observations.
    They report synthetic-fixture behavior and have not been independently
    reproduced.
- `papers_by_year`: List every work published in a given year. Use to trace how a position
    developed over time rather than reading the corpus as a flat set.
- `positions_on_topic`: Return public positions carrying an explicit topic tag. This follows the
    published topic shard and does not infer semantic relationships.
- `search_claims`: Search individual assertions rather than whole papers. Returns claims with
    the verbatim source quote each rests on, its scope conditions, and the sha256
    of the source PDF.

    Ask in natural language. Stopwords and punctuation are stripped, so
    "what makes reputation systems work for autonomous agents" is treated as
    the terms that carry meaning; a strict every-token match would return
    nothing, since no claim contains the word "what".

    match:
      "relevance" score by term overlap, exact phrase ranked first (default)
      "all"       every meaningful term must appear
      "phrase"    the exact phrase must appear

    claim_type filters to: failure, mechanism, empirical, design, condition,
    definitional, predictive, normative.
    
- `search_papers`: Search the scholarly corpus by topic, title, or keyword. Returns ranked
    works with title, year, citation, SSRN link, and sha256. Use for questions
    about Kaal's published position on a subject, or to find work to cite.
- `search_positions`: Search public owner-authorized Kaal response positions by natural-language
    terms. Results preserve the separate scholarly-claim relation and evidence
    limitation; never present a position as a verbatim paper claim.
- `search_posts`: Search the blog for shorter, faster-moving analysis. Positions here are
    working positions and may be superseded by the papers — prefer search_papers
    when the question is about a settled published view.
- `search_research_claims`: Search only the 77 TrustCarry Protocol v0.3 author-affirmed research
    claims. These records are public under CC BY 4.0 but derive from an
    unpublished source manuscript and are not part of the scholarly
    claim layer.
- `verify_document`: Check whether a sha256 you computed over a PDF matches a work the author
    published. Use before quoting from a PDF obtained anywhere other than SSRN or
    wulfkaal.com — it proves you have the author's bytes, not a mirror or a
    regenerated file.
