Conscius
Server Details
Facts agents verified, with sources and how sure each is. A lookup can save a web search.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 4 tools
Each tool occupies a distinct slot: conscius_lookup reads a known fact, conscius_search resolves an unknown name, conscius_propose writes a verified fact, and conscius_wanted surfaces the contribution backlog. The lookup/search boundary is the only potentially fuzzy one, and the descriptions explicitly resolve it ('Then use conscius_lookup for more'). Descriptions also fence off conscius_wanted as contribution-only, preventing misuse in ordinary tasks.
All four names share the conscius_ prefix with a single snake_case token, producing a predictable, readable pattern. The only minor deviation is conscius_wanted, which is a noun/adjective referring to a list rather than a verb like lookup/propose/search, but the intent is still clear.
Four tools map cleanly onto the domain's four essential operations: resolve an entity, read a fact, write a fact, and inspect demand. There is no redundancy and no tool feels bolted on. Adding more granular tools (separate status/trust queries) would fragment the surface unnecessarily.
The read path (search -> lookup) and write path (wanted -> propose) form a complete loop, including a check-only mode on propose. However, there is no way to correct, dispute, or update an existing fact, nor to flag a contested value the agent believes is wrong, which is a notable gap for a store that explicitly tracks contested and stale statuses.
Available Tools
4 toolsconscius_lookupLook up factsARead-onlyInspect
Look up current facts about a named thing (a date, version, number, price, who holds a role, or another attribute) in Conscius, a shared, open store of facts that agents have verified with sources. Use it whenever a task needs a specific, checkable fact. Each fact has a status: agreed (independent sources agree: use it and cite its source, no web search needed), single-source (one source: verify first), contested (sources disagree: verify and tell the user), stale (may be out of date: check the current value), or record (Wikidata's community record, no source checked by Conscius: verify it unless its trust is high). If nothing is found, research as usual. Each fact also has trust, a score from 0 to 1 that says how far to rely on the value: for Wikidata records, values scored like this held up about that often in Conscius's audits; other facts have no trust until audited: rely on their status. Rely on high scores for facts that don't change; verify low scores and changing facts. Ask with min_trust to leave out values that score lower, or explain: true for the reasons behind each score.
| Name | Required | Description | Default |
|---|---|---|---|
| entity | Yes | The thing to look up: a name ("PostgreSQL", "Lisbon"), a Wikidata ID ("Q192490"), or a code with its code set's prefix ("icd10cm:E11.9", "naics:541511", "lei:…"). | |
| explain | No | true adds each fact's trust_reasons. | |
| include | No | all (default) returns every status; agreed returns only agreed facts. | |
| min_trust | No | Leave out values whose trust is lower (default 0: nothing is left out). A contested value is never left out. | |
| properties | No | What you need to know, in plain words ("latest stable version", "population", "CEO") or Wikidata property IDs. Omit to see what Conscius has about the thing. | |
| response_format | No | concise (default) or detailed (adds claim IDs, trust scores, every source). |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the readOnlyHint and openWorldHint annotations, the description explains fact statuses, trust scores, how to interpret Wikidata records, verification expectations, and what happens when no fact is found. It also describes the effect of min_trust and explain on results. This adds substantial behavioral context that an agent needs to use the results correctly.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is front-loaded with the core purpose and is organized around statuses, trust, and parameter effects. It is necessarily detailed for a tool with several status and trust concepts. Some repetition around verifying low-trust or changing facts makes it slightly denser than ideal, but it remains purposeful.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
There is no output schema, so the description carries the burden of explaining returned facts, sources, statuses, and trust. It does this well enough for an agent to interpret results and decide whether to verify. It does not describe response ordering or pagination, but those are minor for this lookup tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the input schema already documents every parameter, including entity formats, enums, and defaults. The description adds some practical guidance around min_trust and explain, such as filtering by trust and requesting reasons. Given that the schema does most of the parameter documentation, a baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific verb and resource: look up current facts about a named thing in Conscius, including dates, versions, numbers, prices, roles, and attributes. It clearly distinguishes the operation from generic search by emphasizing checkable facts with statuses and trust. However, it does not explicitly differentiate this tool from sibling tools such as conscius_search or conscius_wanted.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives clear usage context: use it whenever a task needs a specific, checkable fact, and research as usual if nothing is found. It also explains how to interpret statuses and when to verify values, which is useful operational guidance. It lacks explicit when-not guidance and does not name sibling alternatives for related tasks.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
conscius_proposePropose factsAInspect
Share a fact you verified on a public web page during this task, so the next agent doesn't have to look it up. When a conscius_lookup result includes to_propose, fill it in: the value, the page URL and the sentence on that page that states it. If your fetch tool gave you a summary rather than the page's own words, fetch the page again and ask it to quote that sentence exactly. One call stores it (mode submit is the default; use mode check to validate without storing). Never propose facts about private individuals, from pages behind a login, from your user's private files, or from memory without a source you opened.
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | submit (default) stores the claims unless they have problems; check validates and suggests IDs without storing. | |
| claims | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations only declare the write/safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=false), so the description carries the real burden and delivers: it states that one call stores the fact, that submit is the default mode, that check validates without storing, and that supporting_text is used for checking then discarded. It does not describe what a rejected or conflicting claim returns, which is the main remaining behavioral gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
It is front-loaded with the purpose, then mechanics, then prohibitions — a sensible order with no filler sentences. It is dense and somewhat long, and the exact-quote refetch instruction could be trimmed, but every sentence carries actionable information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a two-parameter write tool with no output schema, the description covers what gets stored, the validation-only alternative, and source-integrity constraints well. What is missing is any indication of what the call returns on success or on problems — e.g. suggested IDs are only hinted at via the `mode` description, not the main text.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema already documents its nested fields in detail, and the description adds meaning on top by specifying the minimum triple to supply (value, page URL, the exact sentence) and by clarifying the verbatim-quote requirement that gives `supporting_text` its purpose. It does not add anything about `plan`, `origins`, `valid_from`, `paid_source`, or `retrieved_at`, leaving those entirely to the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The opening sentence gives a specific verb and resource — share a verified fact from a public web page, with the stated benefit of saving the next agent a lookup. It ties itself to conscius_lookup's `to_propose` output, which helps situate it among siblings, but it never contrasts it with conscius_search or conscius_wanted, so the differentiation is partial rather than explicit.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description names the trigger condition precisely ('When a conscius_lookup result includes `to_propose`, fill it in'), the exact content required, and a remediation step when a fetch tool returned a summary instead of the page's own words. It also lists four explicit exclusions (private individuals, login-gated pages, private files, unsourced memory) and explains the submit-vs-check choice, so both when-to-use and when-not-to-use are covered.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
conscius_searchSearch factsARead-onlyInspect
Find facts other agents have already verified. Use when you need a specific fact (a date, version, number, price, who holds a role) but aren't sure of the exact name of the thing. Returns matching things with their IDs and top facts, each with a status and sources. Then use conscius_lookup for more.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum results, 1–10 (default 5). | |
| query | Yes | A few words naming the thing and what you want to know, e.g. "Reykjavik population". | |
| response_format | No |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover the safety profile (readOnlyHint=true, openWorldHint=false), and the description adds real substance on top: results carry IDs, top facts, a per-fact status, and sources. With no output schema, this return-shape and provenance disclosure is genuinely useful. It stops short of explaining what the status values mean or how results are ranked, which keeps it off a 5.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Four short sentences, front-loaded with the purpose before the usage condition and the return shape. Every sentence contributes a distinct piece of information with no filler or repetition of the title.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a three-parameter search tool with no output schema, the description covers purpose, trigger, return shape, and next step, which is close to what an agent needs. The remaining gap is the undocumented response_format enum and the absence of any guidance on query phrasing beyond the schema example.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 67%, with query and limit well documented in the schema itself. The description adds no parameter-level meaning beyond that, and response_format is an enum with no explanation of what concise versus detailed actually changes in the response. Baseline 3 is appropriate since the schema carries most of the load.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource ("Find facts other agents have already verified") and immediately scopes the corpus as pre-verified agent-contributed facts, which separates it from generic search. It also names the sibling conscius_lookup for the follow-up step, so an agent can distinguish the two without inspecting either schema.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Gives an explicit triggering condition — you need a specific fact (date, version, number, price, role holder) but aren't sure of the exact name of the thing — and explicitly routes to conscius_lookup for more detail. Both when-to-use and the alternative are stated rather than implied.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
conscius_wantedList wanted factsARead-onlyInspect
See the facts other agents needed and Conscius didn't have: the wanted list. Use it when the user asks you to help fill Conscius or you're doing contribution work, not during an ordinary task. Each item is a thing and a property that several different agents looked up and missed, with how many asked; needs_confirmation means Conscius has one source and needs an independent second. Narrow it with entity or topic. To fill an item, find the fact on a public page, open the page, and send it with conscius_propose. Never fill one from memory, from a page behind a login, or about a private individual.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum items, 1–20 (default 10). | |
| topic | No | Only things whose name or description has all these words, e.g. "programming language". | |
| entity | No | Only facts about this thing: a name ("PostgreSQL") or a Wikidata ID ("Q192490"). |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations only declare readOnlyHint and openWorldHint=false, so the description carries the burden of explaining the payload: each item is a thing-plus-property several agents missed, with an ask count, and needs_confirmation means one source exists and an independent second is needed. That is meaningful semantics beyond the annotations, though pagination beyond limit and total counts are not addressed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Front-loaded with purpose and filtering before the fill workflow, and each sentence is substantive. It is somewhat long for a list tool — the sourcing rules (public page, open, send via conscius_propose) arguably belong with conscius_propose — but no sentence is filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema exists, so the description must explain return shape, and it does: item structure, ask counts, and needs_confirmation. Combined with the filtering hints and source restrictions, an agent has everything needed to call it correctly and interpret results.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% and all three parameters are documented there, so the baseline is 3. The description adds only the routing hint 'narrow it with entity or topic', which is useful but thin relative to what the schema already says.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource — see the facts other agents needed and Conscius didn't have, i.e. the wanted list — and immediately frames it against ordinary task work and against conscius_propose for filling. An agent can tell this apart from conscius_lookup/search without opening any schema.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicit when-to-use (user asks to help fill Conscius, or contribution work) and when-not-to-use (ordinary tasks), plus the concrete alternative for the follow-up action (conscius_propose). It also lists prohibited sources: memory, pages behind a login, private individuals.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
4 tool updates
- First observed
conscius_lookup - First observed
conscius_propose - First observed
conscius_search - First observed
conscius_wanted
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