Chart Library — Market-state research
Description
Market memory for AI: historical states, published studies and source evidence.
What our measurements say
Chart Library — Market-state research is a remote MCP server published at chartlibrary.io. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 1,839 ms, a delay an agent will notice. It offers a narrow, focused set of 5 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names like 'market_state' and 'daily_note' clearly indicate their purpose.
- Some tools (e.g., 'search_research') have well-defined parameters with optional fields.
Weaknesses
- Multiple parameters use 'type': null (e.g., 'date' in 'market_state', 'version' in 'read_research').
- Descriptions lack explicit use cases (e.g., 'research_quality' has vague purpose).
- No parameters listed for 'research_quality', making its usage ambiguous.
- Error handling is only mentioned in 'daily_note' (missing notes are 'unavailable').
market_state— Parameter 'date' has type 'null' with no clarification.daily_note— Parameter 'date' has type 'null' and no error handling details.research_quality— No parameters listed, making usage unclear.read_research— Parameter 'version' has type 'null'.
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 416ms → warm 384ms (penalty 32ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
market_stateOne call: completed-session state, tape, historical analogs, outcome ranges and transition memory. symbol is a stock ticker; optional date is YYYY-MM-DD. Omit date for the latest built session, not real-time prices. Preserve status, sample sizes, dates, informative receipts and missing values. Excess ranges describe historical percentage-point returns relative to a date-matched baseline; they are not calibrated forecasts or recommendations. No prior search needed.
symbolstringrequireddate
daily_noteRead the published daily research, its selection rule and settled-note tally in one call. No arguments needed. Optional date (YYYY-MM-DD) selects a published session. A missing note or unsettled outcome is unavailable evidence, not zero. The note is research selected by a disclosed rule, not a stock-pick list.
date
research_qualityRead the published five-session calibration receipt; no arguments or earlier tool call needed. Preserve the receipt's dates, sample sizes and qualifications. Coverage applies to the calibrated cohort-band method and population named in the response, NOT automatically to market_state's empirical excess ranges, all research, or future returns. Daily-note results have a separate tally in daily_note. This is an evidence audit, not investment performance.
search_researchFind published studies, Casebook and agent protocols by keyword. kind: all, study, casebook or agent_protocol. limit 1-20; use next_offset for more results. Returns exact IDs, findings, verdicts, dates, samples and document versions. Partial status means one publication source was unavailable. Proposed protocols are not findings. This is document search, not analog ranking. Discovery metadata is not a source read. Use documents[section].read_arguments for exact version-pinned reads. Check related_research for relevant context and limits.
querystringkindstringlimitintegeroffsetinteger
read_researchRead a publication ID returned by search_research, preserving its evidence. source_fields returns exact catalog status/receipt fields; content.source_rows exposes literal result tables/mappings with source positions and heading scope. These are source projections, not AI conclusions. Missing parsed rows do not establish absence of a result. Use the text/guide for interpretation and limits. overview returns findings, dates, samples, limitations, version and available sections. Select article, protocol, result, guide or evidence for the exact source text. Use documents[section].read_arguments returned by search or overview. Version is optional for compatibility: omitting it reads the current revision and does not verify agreement with an earlier response.
research_idstringrequiredsectionstringoffsetintegerversion
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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