MCPサーバー
US federal rules taking effect
io.github.joelp22-maker/referencesource-rules
このMCPでできること
Searches and verifies published US federal rules by effective date, agency, CFR part, and Federal Register document.
機能
ツール
5
ツール
get_rule
Get one rule by Federal Register document number
Everything this register holds for one final rule: title, agency, effective date, the rule's own DATES paragraph, the CFR parts it amends, its publication date, a link to the rule on federalregister.gov, and a verbatim quote of the Federal Register API record it was read from. Document numbers look like "2026-13685" and appear in every other tool's results.
読み取り専用
入力スキーマ
{'type': 'object', 'required': ['document_number'], 'properties': {'document_number': {'type': 'string', 'description': 'Federal Register document number, e.g. "2026-13685".'}}}
出力スキーマ
{'type': 'object', 'required': ['rule'], 'properties': {'rule': {'type': 'object', 'properties': {'record_url': {'type': 'string', 'description': "This record's own page on referencesource.org."}, 'source_url': {'type': 'string', 'description': 'The page the value was read from.'}, 'source_quote': {'type': 'string', 'description': 'Verbatim text from that page containing the value.'}, 'also_reported': {'type': 'array', 'items': {'type': 'object', 'properties': {'as_of': {'type': 'string'}, 'field': {'type': 'string'}, 'value': {}, 'source_url': {'type': 'string'}, 'source_quote': {'type': 'string'}}}, 'description': "Values for this record reported by a SECOND source, each with its own source_url and source_quote. Cite these to the page they name, never to the record's primary source."}, 'federal_register_url': {'type': 'string'}}}, 'register': {'type': 'object'}}}
list_agencies
List the agencies with rules taking effect
Which agencies have rules coming? Returns each agency in this register with how many rules it has taking effect, the soonest and latest of those dates. Call it to get an agency name exactly as the Federal Register writes it before filtering with list_rules_taking_effect — "Federal Aviation Administration", not "FAA".
読み取り専用
入力スキーマ
{'type': 'object', 'properties': {'query': {'type': 'string', 'description': 'Optional case-insensitive substring filter on the agency name.'}}}
出力スキーマ
{'type': 'object', 'required': ['agencies_total', 'agencies', 'coverage'], 'properties': {'agencies': {'type': 'array', 'items': {'type': 'object', 'properties': {'rules': {'type': 'integer'}, 'agency': {'type': 'string'}, 'last_effective_date': {'type': 'string'}, 'next_effective_date': {'type': 'string'}}}}, 'coverage': {'type': 'string'}, 'register': {'type': 'object'}, 'agencies_total': {'type': 'integer'}}}
list_rules_amending_cfr_part
List rules amending a CFR part
Is anything changing in the part of the CFR I am subject to? Give a CFR title and part — "49 CFR 192", "40 CFR 52", "21 CFR 1308" — and get the already-published final rules that amend it, soonest effective date first, with each rule's DATES paragraph and a verbatim quote. The part is matched whole, so "40 CFR 5" never returns rules about 40 CFR 52.
読み取り専用
入力スキーマ
{'type': 'object', 'required': ['cfr_part'], 'properties': {'from': {'type': 'string', 'description': 'Optional ISO date; only rules taking effect on or after it.'}, 'limit': {'type': 'integer', 'description': 'How many to return, 1–20. Default 20.'}, 'cfr_part': {'type': 'string', 'description': 'The CFR title and part together, e.g. "49 CFR 192". A bare part number is refused: it is ambiguous across the fifty CFR titles.'}}}
出力スキーマ
{'type': 'object', 'required': ['cfr_part', 'rules_matched', 'rules', 'coverage'], 'properties': {'rules': {'type': 'array', 'items': {'type': 'object', 'properties': {'agency': {'type': 'string', 'description': 'The issuing agency as the Federal Register names it.'}, 'cfr_parts': {'type': 'string', 'description': 'The CFR title and part references, e.g. "49 CFR 171, 49 CFR 173". Assembled here from the record\'s structured cfr_references list, so it is our formatting of the source\'s values, not a printed string.'}, 'record_id': {'type': 'string'}, 'record_url': {'type': 'string', 'description': "This record's own page on referencesource.org."}, 'rule_title': {'type': 'string'}, 'source_url': {'type': 'string', 'description': 'The page the value was read from.'}, 'source_quote': {'type': 'string', 'description': 'Verbatim text from that page containing the value.'}, 'also_reported': {'type': 'array', 'items': {'type': 'object', 'properties': {'as_of': {'type': 'string'}, 'field': {'type': 'string'}, 'value': {}, 'source_url': {'type': 'string'}, 'source_quote': {'type': 'string'}}}, 'description': "Values for this record reported by a SECOND source, each with its own source_url and source_quote. Cite these to the page they name, never to the record's primary source."}, 'effective_date': {'type': 'string', 'description': "ISO date the rule takes effect, from the Federal Register's structured effective_on field. Read dates_paragraph before acting on it."}, 'dates_paragraph': {'type': 'string', 'description': "The rule's own DATES paragraph, verbatim. The authority on when it bites."}, 'document_number': {'type': 'string', 'description': 'Federal Register document number, e.g. "2026-13685".'}, 'publication_date': {'type': 'string'}}}}, 'cfr_part': {'type': 'string'}, 'coverage': {'type': 'string'}, 'register': {'type': 'object'}, 'rules_matched': {'type': 'integer'}, 'rules_returned': {'type': 'integer'}}}
list_rules_taking_effect
List federal rules taking effect between two dates
What lands on me, and when? Lists already-published US federal final rules whose effective date falls between two dates, soonest first, optionally from one agency. Each with the rule title, the agency, the CFR parts amended, the document number, the rule's own DATES paragraph and a verbatim quote of the Federal Register record. This is the compliance-calendar question — use it for "what takes effect in Q4", not for searching the Federal Register by topic.
読み取り専用
入力スキーマ
{'type': 'object', 'required': ['from', 'to'], 'properties': {'to': {'type': 'string', 'description': 'ISO end date, inclusive, e.g. "2026-12-31".'}, 'from': {'type': 'string', 'description': 'ISO start date, inclusive, e.g. "2026-10-01".'}, 'limit': {'type': 'integer', 'description': 'How many to return, 1–20. Default 20.'}, 'agency': {'type': 'string', 'description': 'Optional agency filter, matched case-insensitively as a substring of the agency name ("Coast Guard", "aviation"). Call list_agencies for the names as the Federal Register writes them.'}}}
出力スキーマ
{'type': 'object', 'required': ['from', 'to', 'rules_matched', 'rules', 'coverage'], 'properties': {'to': {'type': 'string'}, 'from': {'type': 'string'}, 'rules': {'type': 'array', 'items': {'type': 'object', 'properties': {'agency': {'type': 'string', 'description': 'The issuing agency as the Federal Register names it.'}, 'cfr_parts': {'type': 'string', 'description': 'The CFR title and part references, e.g. "49 CFR 171, 49 CFR 173". Assembled here from the record\'s structured cfr_references list, so it is our formatting of the source\'s values, not a printed string.'}, 'record_id': {'type': 'string'}, 'record_url': {'type': 'string', 'description': "This record's own page on referencesource.org."}, 'rule_title': {'type': 'string'}, 'source_url': {'type': 'string', 'description': 'The page the value was read from.'}, 'source_quote': {'type': 'string', 'description': 'Verbatim text from that page containing the value.'}, 'also_reported': {'type': 'array', 'items': {'type': 'object', 'properties': {'as_of': {'type': 'string'}, 'field': {'type': 'string'}, 'value': {}, 'source_url': {'type': 'string'}, 'source_quote': {'type': 'string'}}}, 'description': "Values for this record reported by a SECOND source, each with its own source_url and source_quote. Cite these to the page they name, never to the record's primary source."}, 'effective_date': {'type': 'string', 'description': "ISO date the rule takes effect, from the Federal Register's structured effective_on field. Read dates_paragraph before acting on it."}, 'dates_paragraph': {'type': 'string', 'description': "The rule's own DATES paragraph, verbatim. The authority on when it bites."}, 'document_number': {'type': 'string', 'description': 'Federal Register document number, e.g. "2026-13685".'}, 'publication_date': {'type': 'string'}}}}, 'coverage': {'type': 'string'}, 'register': {'type': 'object'}, 'rules_matched': {'type': 'integer'}, 'rules_returned': {'type': 'integer'}}}
verify_quote
Check a claimed fact about a rule against the register
Is this right? Check a claim about a final rule — its effective date, its agency, the CFR parts it amends — against the Federal Register record instead of trusting it. Says whether the claim matches a stored value, appears only in the verbatim quote, or differs (and then what the record says instead). Effective dates are exactly where a confident wrong answer costs money.
読み取り専用
入力スキーマ
{'type': 'object', 'required': ['claimed_value', 'document_number'], 'properties': {'field': {'type': 'string', 'description': 'Which field the claim is about, if you know it. Without it, every stored field of the record is checked.'}, 'claimed_value': {'type': 'string', 'description': 'The value to check, exactly as claimed, e.g. "Terminated" or "2026-10-29".'}, 'document_number': {'type': 'string', 'description': 'Federal Register document number of the rule the claim is about, e.g. "2026-13685".'}}}
出力スキーマ
{'type': 'object', 'required': ['verdict', 'claimed_value', 'attestation'], 'properties': {'match': {'type': 'object', 'properties': {'field': {'type': 'string'}, 'match_type': {'enum': ['exact', 'case_insensitive', 'normalised', 'normalised_number', 'within_stored_value'], 'type': 'string'}, 'source_url': {'type': 'string'}, 'reported_by': {'type': 'string'}, 'source_quote': {'type': 'string'}, 'stored_value': {}}}, 'record': {'type': 'object', 'properties': {'id': {'type': 'string'}, 'record_url': {'type': 'string', 'description': "This record's own page on referencesource.org."}, 'source_url': {'type': 'string', 'description': 'The page the value was read from.'}, 'source_quote': {'type': 'string', 'description': 'Verbatim text from that page containing the value.'}, 'also_reported': {'type': 'array', 'items': {'type': 'object', 'properties': {'as_of': {'type': 'string'}, 'field': {'type': 'string'}, 'value': {}, 'source_url': {'type': 'string'}, 'source_quote': {'type': 'string'}}}, 'description': "Values for this record reported by a SECOND source, each with its own source_url and source_quote. Cite these to the page they name, never to the record's primary source."}}}, 'verdict': {'enum': ['matches_record', 'matches_quote', 'differs', 'not_found'], 'type': 'string', 'description': 'matches_record: the claim equals a stored value (match.match_type says how exactly). matches_quote: it appears in the verbatim source quote but is not a stored value. differs: the record was found and says something else — stored_values shows what. not_found: the record was not located, which says nothing about whether the claim is true.'}, 'attestation': {'type': 'string'}, 'quote_source': {'type': 'string'}, 'claimed_value': {'type': 'string'}, 'stored_values': {'type': 'object'}, 'in_source_quote': {'type': 'boolean'}}}
履歴
最近のツール変更
追加
verify_quote
2026年9月22日2:40
追加
list_rules_amending_cfr_part
2026年9月22日2:40
追加
list_agencies
2026年9月22日2:40
追加
get_rule
2026年9月22日2:40
追加
list_rules_taking_effect
2026年9月22日2:40
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