Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Certificate changed, valid to 2027-01-06
Changed the definition of "list_california_code_documents" and "lookup_california_code_section"
List the California codes and local ordinances available for lookup, andstate honestlywhat isNOTnot covered.Call thisUseful beforetelling aconcludinguserthat a code is unavailable, andwhen youforneedfinding the exact documentslugor jurisdiction slugforthat alookup.lookup takes.
⟨65 unchanged words⟩ and a link to the full section. It returns code text only and doesNOTnot determine whether a specific projectcomplies — for that, send the user to the linked page.complies.
Changed the definition of "list_california_code_documents", "lookup_california_code_section" and "search_california_codes"
before
{"properties":{"applied_question_url":{"type":"string"},"browse_url":{"type":"string"},"editions":{"items":{"properties":{"id":{"type":"string"},"in_force":{"type":"string"},"label":{"type":"string"}},"required":["id","label","in_force"],"type":"object"},"type":"array"},"groups":{"description":"Documents grouped by collection. Statewide: Title 24 first. Jurisdiction: the place's own documents, then those of the jurisdiction that also governs it.","items":{"properties":{"documents":{"items":{"properties":{"edition":{"type":["string","null"]},"slug":{"type":"string"},"title":{"type":"string"},"url":{"type":["string","null"]}},"required":["title","slug"],"type":"object"},"type":"array"},"key":{"type":"string"},"label":{"type":"string"}},"required":["key","label","documents"],"type":"object"},"type":"array"},"jurisdiction":{"properties":{"name":{"type":"string"},"slug":{"type":"string"}},"required":["slug","name"],"type":["object","null"]},"message":{"type":["string","null"]},"municipal":{"description":"Statewide only: how many local ordinances are held.","properties":{"document_count":{"type":"integer"},"jurisdiction_count":{"type":"integer"}},"required":["document_count","jurisdiction_count"],"type":["object","null"]},"notes":{"description":"Coverage caveats. Read them before telling a user a code is unavailable.","items":{"type":"string"},"type":"array"},"scope":{"enum":["statewide","jurisdiction"],"type":"string"},"status":{"enum":["ok","not_found","empty","error"],"type":"string"}},"required":["status"],"type":"object"}after
—Added "search_california_codes"; changed the definition of "list_california_code_documents" and "lookup_california_code_section" (2 tools before, 3 now)
before
—after
{"properties":{"applied_question_url":{"type":"string"},"browse_url":{"type":"string"},"editions":{"items":{"properties":{"id":{"type":"string"},"in_force":{"type":"string"},"label":{"type":"string"}},"required":["id","label","in_force"],"type":"object"},"type":"array"},"groups":{"description":"Documents grouped by collection. Statewide: Title 24 first. Jurisdiction: the place's own documents, then those of the jurisdiction that also governs it.","items":{"properties":{"documents":{"items":{"properties":{"edition":{"type":["string","null"]},"slug":{"type":"string"},"title":{"type":"string"},"url":{"type":["string","null"]}},"required":["title","slug"],"type":"object"},"type":"array"},"key":{"type":"string"},"label":{"type":"string"}},"required":["key","label","documents"],"type":"object"},"type":"array"},"jurisdiction":{"properties":{"name":{"type":"string"},"slug":{"type":"string"}},"required":["slug","name"],"type":["object","null"]},"message":{"type":["string","null"]},"municipal":{"description":"Statewide only: how many local ordinances are held.","properties":{"document_count":{"type":"integer"},"jurisdiction_count":{"type":"integer"}},"required":["document_count","jurisdiction_count"],"type":["object","null"]},"notes":{"description":"Coverage caveats. Read them before telling a user a code is unavailable.","items":{"type":"string"},"type":"array"},"scope":{"enum":["statewide","jurisdiction"],"type":"string"},"status":{"enum":["ok","not_found","empty","error"],"type":"string"}},"required":["status"],"type":"object"}Certificate recorded, valid to 2026-12-08
Authorization not required
Unknown → Live
First tool surface recorded: 2 tools (server version 1.0.0)
https://gocodebook.com/api/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 9 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
before
{"properties":{"ambiguous":{"description":"True when the number exists in more than one code. Pick by the code the user named and say which one you used; never merge them.","type":"boolean"},"applied_question_url":{"description":"Where to send a user whose real question is whether a specific project complies.","type":"string"},"as_of":{"description":"The date the codes were read as of (YYYY-MM-DD), or null for the current edition.","type":["string","null"]},"browse_url":{"type":"string"},"historical":{"description":"True when this is NOT the current code. Say so to the user.","type":"boolean"},"matches":{"items":{"properties":{"citation":{"description":"Cite exactly this string.","type":"string"},"document_slug":{"type":["string","null"]},"document_title":{"type":"string"},"edition":{"type":["string","null"]},"excerpt":{"type":"string"},"excerpt_truncated":{"description":"True when the excerpt is cut short. It is never the whole section.","type":"boolean"},"heading":{"type":"string"},"kind":{"description":"text: an excerpt of the section's own words. subsection_list: the section has no text of its own and `excerpt` lists its subsections. empty: no text.","enum":["text","subsection_list","empty"],"type":"string"},"section_number":{"type":"string"},"source_url":{"description":"Link to the full section. Always show it to the user.","type":["string","null"]}},"required":["document_title","section_number","heading","citation","source_url","kind","excerpt","excerpt_truncated"],"type":"object"},"type":"array"},"message":{"description":"Guidance when status is not_found or error.","type":["string","null"]},"query":{"properties":{"code_edition":{"enum":["current","2022","2019"],"type":"string"},"jurisdiction":{"type":"string"},"section":{"type":"string"}},"required":["section","jurisdiction","code_edition"],"type":"object"},"status":{"description":"found: at least one section matched. not_found: nothing matched — do NOT paraphrase a section that was not returned. error: the lookup could not run.","enum":["found","not_found","error"],"type":"string"}},"required":["status"],"type":"object"}after
—before
{"properties":{"applied_question_url":{"type":"string"},"as_of":{"type":["string","null"]},"credits_charged":{"type":"integer"},"hint":{"description":"The search page's own notice about this query (a missing section, a zone code in the wrong city, a code the library does not hold, an address). Tell the user what it says.","type":["object","null"]},"historical":{"type":"boolean"},"message":{"type":["string","null"]},"query":{"properties":{"code_edition":{"enum":["current","2022","2019"],"type":"string"},"jurisdiction":{"type":"string"},"query":{"type":"string"},"sources":{"items":{"enum":["federal","state","local"],"type":"string"},"type":"array"}},"required":["query","jurisdiction","code_edition"],"type":"object"},"results":{"description":"Ranked best-first. Each excerpt is a short passage, never the whole section.","items":{"properties":{"citation":{"description":"Cite exactly this string.","type":"string"},"document_slug":{"type":["string","null"]},"document_title":{"type":"string"},"edition":{"type":["string","null"]},"excerpt":{"type":"string"},"excerpt_truncated":{"type":"boolean"},"heading":{"type":"string"},"section_number":{"type":["string","null"]},"source_url":{"description":"Link to the full section. Always show it.","type":["string","null"]}},"required":["document_title","heading","citation","source_url","excerpt","excerpt_truncated"],"type":"object"},"type":"array"},"section_ref":{"type":["object","null"]},"status":{"description":"found / no_results: the search ran and 1 credit was charged (a search with no results still costs a credit). signin_required: the user must connect their GoCodebook account. credits_required: the account has no credits — send the user to upgrade_url. rate_limited / error: nothing ran and nothing was charged.","enum":["found","no_results","signin_required","credits_required","rate_limited","error"],"type":"string"},"upgrade_url":{"type":["string","null"]}},"required":["status"],"type":"object"}after
—before
—after
{"properties":{"ambiguous":{"description":"True when the number exists in more than one code. Pick by the code the user named and say which one you used; never merge them.","type":"boolean"},"applied_question_url":{"description":"Where to send a user whose real question is whether a specific project complies.","type":"string"},"as_of":{"description":"The date the codes were read as of (YYYY-MM-DD), or null for the current edition.","type":["string","null"]},"browse_url":{"type":"string"},"historical":{"description":"True when this is NOT the current code. Say so to the user.","type":"boolean"},"matches":{"items":{"properties":{"citation":{"description":"Cite exactly this string.","type":"string"},"document_slug":{"type":["string","null"]},"document_title":{"type":"string"},"edition":{"type":["string","null"]},"excerpt":{"type":"string"},"excerpt_truncated":{"description":"True when the excerpt is cut short. It is never the whole section.","type":"boolean"},"heading":{"type":"string"},"kind":{"description":"text: an excerpt of the section's own words. subsection_list: the section has no text of its own and `excerpt` lists its subsections. empty: no text.","enum":["text","subsection_list","empty"],"type":"string"},"section_number":{"type":"string"},"source_url":{"description":"Link to the full section. Always show it to the user.","type":["string","null"]}},"required":["document_title","section_number","heading","citation","source_url","kind","excerpt","excerpt_truncated"],"type":"object"},"type":"array"},"message":{"description":"Guidance when status is not_found or error.","type":["string","null"]},"query":{"properties":{"code_edition":{"enum":["current","2022","2019"],"type":"string"},"jurisdiction":{"type":"string"},"section":{"type":"string"}},"required":["section","jurisdiction","code_edition"],"type":"object"},"status":{"description":"found: at least one section matched. not_found: nothing matched — do NOT paraphrase a section that was not returned. error: the lookup could not run.","enum":["found","not_found","error"],"type":"string"}},"required":["status"],"type":"object"}Search California building codes (Title 24), state housing law and California city and county zoning/municipal codes by TOPIC, when the user does not already have a section number — e.g. "minimum attic access opening", "ADU setbacks in San Jose". Requires the user's GoCodebook account and uses 1 credit per search (also when nothing is found). If the user already cites a section number, use lookup_california_code_section instead — it is free. Returns ranked excerpts with citations and links. It does NOT decide whether a project complies.