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io.github.CloudCorpRecords/glazemath

OCI · GHCR.IO/CLOUDCORPRECORDS/GLAZEMATH · 2 COMPONENTS

Ceramic glaze chemistry: unity formulas, limit checks, substitutes, recipes, shelf and firing logs.

36 Trust /100

Last scanned (4 hours ago)

Scores higher than 37% of OCI servers

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security0
  • No malware scan is available for this kind of package: the supply-chain vendors we use do not cover it. This is a permanent gap in our coverage, not a finding about the package.Unverified
  • Known CVEs could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.Unverified
  • Install-script risk not yet assessed.Unverified
  • Dependency health could not be checked: this artifact ships no SBOM or dependency manifest, so there is no dependency list to read.Unverified
Provenance & Transparency45
Schema Quality & AI Usability59
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 7745 tokens (~234/item across 33 items; 33 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
  • Stability observed for 0 of 30 days with no destabilising changes; credit accrues until the full window elapses.Unverified
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "remove_from_shelf" implies "remove" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
  • An AI judge read all 33 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Unverified: 2 categories

Categories scored 0 because we could not verify them: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 5 Nov 26 36

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 5 Nov 2026 · Analysed oci/ghcr.io/cloudcorprecords/glazemath@0.1.0

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem oci
Reason No attestation published

Background: How many MCP packages publish verified provenance →

MCP tools · 33 exposed · ~7,745 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
add_firing_rows ~163

Adds rows to the end of one of your firing logs (an id from list_firings), in the log's own columns (get_firing gives them): the readings dictated during a firing. The rows already there stay as they are, and the log as it was is kept as an earlier version. At most 500 rows a log. Save only what the person said and agreed to; never fill in an amount, temperature or analysis they did not give. Needs an access token that can read and change your records.

NameTypeReqDescription
idstringyesThe firing log, from list_firings.
rowsarrayyesThe new readings, in the log’s own columns (get_firing gives them), each row a cell for each column.

No output schema declared.

No examples provided.

add_my_material ~202

Saves a material of your own in your Glazecalc account (the Materials page) from its oxide analysis in weight percent, as on a data sheet, with its loss on ignition. Recipes can then use it by name. Needs an access token that can read and change your records.

NameTypeReqDescription
analysisobjectyesIts oxides in weight percent, as on a data sheet: { "SiO2": 68.5, "Al2O3": 17.4, "K2O": 9.8 }.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
loinumber–Its loss on ignition in percent.
namestringyesThe name of your material.
notesstring–Notes about the material.

No output schema declared.

No examples provided.

add_notebook_entry ~133

Adds an entry to your Glazecalc notebook (the Notebook page), with an optional title: a test result, an observation, a firing to try. With about, it is a note about one of your recipes, materials or firing logs, which list_notes finds by that record's id. Needs an access token that can read and change your records.

NameTypeReqDescription
aboutobject–The saved record the entry is about, when it is about one: list_notes with its id finds it again.
contentstringyesThe entry.
titlestring–A title for the notebook entry.

No output schema declared.

No examples provided.

add_to_shelf ~76

Marks materials as on hand (the shelf that Match with what I have uses), by the library's names or your own materials'. The shelf as it was is kept: undo_shelf_change puts it back. Needs an access token that can read and change your records.

NameTypeReqDescription
materialsarrayyesThe materials, by name.

No output schema declared.

No examples provided.

analyze_recipe ~189

Works out a glaze recipe's unity (Seger) formula, oxide groups, silica to alumina ratio, fired analysis, loss on ignition and calculated thermal expansion, as the Glazecalc app does. stull says where the recipe sits on Stull's chart (1912, as the recipe page draws it): silica and alumina in moles, the region (unfused, matte, semi-matte, bright or underfired) and whether it falls in the crazed area; a guide to the surface, not a promise.

NameTypeReqDescription
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarrayyesThe recipe's base materials (not colorants), at most 40 lines.

No output schema declared.

No examples provided.

blend_recipes ~485

Works out the test tiles of a line blend between recipes a and b (2 to 11 steps), or of a triaxial blend when c is given too (2 to 6 rows, up to 21 tiles), as the Blends page of the Glazecalc app does. Each tile is a mix of the corner recipes, each taken as a percent of its base: its shares, its recipe in percent, its key unity formula figures (silica, alumina, boron, the fluxes), silica to alumina, calculated expansion, its place on the Stull chart (stull), the names of the limit cautions it has, and, with a firing, whether its chemistry fits that firing (coneFit verdict). With two recipes and steps 2 it compares them oxide by oxide (differences). Give base materials only, no colorants. This is a calculation from published figures, not a test result: the tiles, fired, decide, and the cautions are guides, not a guarantee of food safety.

NameTypeReqDescription
aarrayyesRecipe A, the first corner (the line's first tile, or the top of the triangle).
barrayyesRecipe B (the line's last tile, or the triangle's bottom left).
carray–Recipe C, the triangle's bottom right. Leave it out for a line blend between a and b.
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
limitSetstring–The limits to check against, as check_limits takes it: "glazecalc" (the default) or "hesselberth-roy".
stepsinteger–Tiles in the line (2 to 11, default 5), or rows of the triangle when c is given (2 to 6, default 4).

No output schema declared.

No examples provided.

check_limits ~538

Checks a glaze recipe for what is past a recommended limit for its firing (too much boron or alkali, too little alumina, too little or too much clay, rising expansion...) and says what the fired glaze will likely do, as the Glazecalc app does. A cone is checked in the band the recipe page gives it (low cone 06-02, mid 1-7, high 8-11); from cone 12 up (band 'top') no published limits reach, so the band's limits are not checked and limitsNote says so. With a firing, coneFit says whether the chemistry looks like that firing's, by Katz's boron rule and Hesselberth & Roy's silica and alumina whatever limit set is chosen: verdict 'cooler' or 'hotter' only when boron and silica or alumina agree on another band; 'fits' (nothing points away, not a pass); 'skipped' where the published figures do not reach (lead, lithium, much soda and potash or zinc, raku, cones 01 to 3, cooler than cone 06 or hotter than cone 10...). Cone 6 against cone 10 is told apart only roughly (strength 'soft'). stull says where the recipe sits on Stull's chart, as analyze_recipe gives it. These are cautions and guides from published figures, not a test and not a guarantee of food safety.

NameTypeReqDescription
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
limitSetstring–The limits to check against: "glazecalc" or "hesselberth-roy" (Hesselberth & Roy, cone 6 and 10 only, no low-fire figures). Neither has figures from cone 12 up. Left out: the limit set saved in the a…
linesarrayyesThe recipe's base materials (not colorants), at most 40 lines.

No output schema declared.

No examples provided.

compare_recipes ~361

Compares two glaze recipes side by side: for each, its recipe in percent, key unity formula figures, silica to alumina, calculated expansion, place on Stull's chart (stull), the names of the limit cautions it has and, with a firing, whether its chemistry fits that firing (coneFit verdict); then what changes from A to B oxide by oxide (differences), and which materials are in A only, in B only, or in both, with their percents. It is the same comparison blend_recipes makes with two recipes and two steps, under a name that is easy to find. Give base materials only, no colorants. This is a calculation from published figures, not a test result: fire both, and the tiles decide.

NameTypeReqDescription
aarrayyesRecipe A.
barrayyesRecipe B.
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
labelsarray–Names for A and B, two of them, such as ["Original", "With whiting"], echoed back.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
limitSetstring–The limits to check against, as check_limits takes it: "glazecalc" (the default) or "hesselberth-roy".

No output schema declared.

No examples provided.

convert_cone_temperature ~305

Converts between a pyrometric cone and its temperature, and between °C and °F. Orton cones run 022 to 42: Glazecalc's figure, from 022 to 15, is Orton's older chart for large cones at 150 °C an hour, and Orton's current figures (self-supporting cones at 15, 60 and 150 °C an hour, large cones at 60 and 150, cone 022 to 14) come beside it; Orton publishes no figure above cone 14, so cones from 16 up have none. SK cones (JIS R 8101, SK 022 to SK 20) by the standard's nominal figures. Give a cone, or a temperature to find the nearest cones.

NameTypeReqDescription
celsiusnumber–A temperature in degrees Celsius to convert (-50 to 2000); give a temperature, or a cone instead.
chartstring–Which cone chart to use: "orton" (Orton) or "sk" (SK, JIS R 8101).
conestring–The pyrometric cone to convert to a temperature (cones run 022 to 42, e.g. "6"); give a cone, or a temperature instead.
fahrenheitnumber–A temperature in degrees Fahrenheit to convert (-60 to 3600); give a temperature, or a cone instead.

No output schema declared.

No examples provided.

create_firing_log ~291

Saves a new firing log in your Glazecalc account (the Firing page): its title, the day, the kiln, the columns kept (time, temperature, cone, atmosphere, comments...) and a row for each reading, as the person dictated them. Add later readings with add_firing_rows. Save only what the person said and agreed to; never fill in an amount, temperature or analysis they did not give. Needs an access token that can read and change your records.

NameTypeReqDescription
columnsarrayyesThe columns kept, by these names, as on the Firing page: Time, Temperature F or Temperature C (the scale said), Cone, Atmosphere, Ramp, Hold, Damper, Comments and the rest.
datestring–The day it was fired, as 2026-10-21; today when left out.
kilnstring–The kiln, as the person names it.
notesstring–Anything else said about the firing, in the person’s words.
rowsarrayyesOne row for each reading, one cell for each column, in column order, as the person said it ("9:40", "1850", "5 bending"); "" for a cell not said.
titlestringyesThe log’s name, as the person gave it ("Glaze firing, cone 6").

No output schema declared.

No examples provided.

create_recipe ~305

Saves a new glaze recipe in your Glazecalc account, from its base materials and amounts (the library's names, or your own materials'), with optional colorants, notes, firing band and food-surface mark. Glazecalc works out its unity formula, as the recipe page does, and answers with it. Save only a recipe the person asked to save. Needs an access token that can read and change your records.

NameTypeReqDescription
colorantsarray–Colorants and opacifiers added to the base, as the recipe page lists them; left out of the unity formula.
firingstring–The firing band its limits are checked in: low (cone 06-02), mid (cone 4-6), high (cone 9-11) or top (cone 12 up, where no limit set has figures, so none are checked), as the recipe page chooses it.
foodSurfaceboolean–Whether it is meant for a food surface (a liner).
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarrayyesThe recipe's base materials (not colorants), at most 40 lines.
notesstring–Notes kept with the recipe.
titlestringyesThe recipe’s name.

No output schema declared.

No examples provided.

get_firing ~44

One firing log from your account: its columns (time, temperature, cone...) and rows, and its notes.

NameTypeReqDescription
idstringyesThe id from a list.

No output schema declared.

No examples provided.

get_material ~60

One material from Glazecalc's library: its oxides, loss on ignition, whether it is discontinued and what replaces it, where it is sold, hazards and the data sheet it comes from.

NameTypeReqDescription
namestringyesIts name or alias.

No output schema declared.

No examples provided.

get_my_settings ~91

Your Glazecalc settings that matter when talking about glazes: region, temperature scale, cones, language, weight unit, whether lead may be suggested, the limit set recipes are checked against, the currency your prices are in (never the prices), and whether changes made by assistants wait for your approval on the website (confirmChanges: off, removals or all; it can be changed only there).

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_recipe ~515

One recipe from your account: its materials and amounts, colorants, notes, its stated firing (firedAt: the cone scale, the low and optional high cone of the claimed range, the cones actually tested, the atmospheres and processes, and for a temperature the rate and hold; each cone exactly as the potter gave it), whether it is for a food surface, the firing logs it went through with a result note each and, where known, the cone and atmosphere each was fired at, the potter’s summary of how it came out at each cone and atmosphere (coneResults; one outside the stated firing is kept), the firing band and target specific gravity saved with it, and its unity formula worked out afresh. It is checked against the limit set chosen in your settings: for the firing given here, or else the band chosen on the recipe, or else the bands its stated firing falls in (a range across two bands is checked at each). A firing from cone 12 up is band 'top', where no limit set has figures: its limits are not checked, and limitsNote says so. coneFit says, for the same firing, whether the chemistry looks like that firing's, as the recipe page's limits panel does: by Katz's boron rule and Hesselberth & Roy's silica and alumina whatever limit set is chosen, a note (verdict 'cooler' or 'hotter') only when boron and silica or alumina agree on another band, 'closer' when a range across bands looks nearer one end, 'fits' when nothing points away (not a pass), 'skipped' where the published figures do not reach (among them firings cooler than cone 06 or hotter than cone 10). Cone 6 against cone 10 is told apart only roughly (strength 'soft'). A guide, not a test.

NameTypeReqDescription
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
idstringyesThe id from a list.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.

No output schema declared.

No examples provided.

get_shelf ~32

The materials you marked as on hand in Glazecalc (the shelf that Match with what I have uses).

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

link_firing ~271

Links one of your recipes to a firing log it went through, as the recipe page does, and sets what came of it there: the result in the person's words (at most 500 characters), and the cone and atmosphere when they differ from the log. Linked already, it changes only what is given. A recipe links to at most 100 logs. Taking a link off is done on the website. Save only what the person said and agreed to; never fill in an amount, temperature or analysis they did not give. Needs an access token that can read and change your records.

NameTypeReqDescription
atmospherestring–oxidation, reduction or neutral, when the person says it.
conestring–The cone it was fired to there, as the recipe page writes it ("6", "06", "5.5", SK "6a", or "1240" for °C), when it differs from what the log says.
firingIdstringyesThe firing log it went through, from list_firings.
recipeIdstringyesThe recipe, from list_recipes.
resultstring–What came of it in that firing, in the person’s words (at most 500 characters; put longer text in a notebook entry about the recipe).

No output schema declared.

No examples provided.

list_firings ~73

Lists the firing logs saved in your Glazecalc account, newest first.

NameTypeReqDescription
limitinteger–How many to return, 25 by default.
offsetinteger–How many to skip, for the next page.
searchstring–Only list firing logs matching this search text.

No output schema declared.

No examples provided.

list_my_materials ~83

Lists the materials you have saved in your own Glazecalc account (not the shared library), with their oxides.

NameTypeReqDescription
limitinteger–How many to return, 25 by default.
offsetinteger–How many to skip, for the next page.
searchstring–Only list your saved materials matching this search text.

No output schema declared.

No examples provided.

list_notes ~106

The notes in your Glazecalc notebook, newest first, optionally only those about one record (a recipe, material or firing log id).

NameTypeReqDescription
aboutstring–Only the notes about this record id.
limitinteger–How many to return, 25 by default.
offsetinteger–How many to skip, for the next page.
searchstring–Only list notes about this one record (a recipe, material or firing log id).

No output schema declared.

No examples provided.

list_recipes ~332

Lists the glaze recipes saved in your Glazecalc account, newest first, optionally only those whose title or a material matches a search, or whose stated firing includes a cone or names an atmosphere or process ("which of my glazes fire at cone 10 reduction?"). Each lists its stated firing; a recipe with none has not stated one.

NameTypeReqDescription
atmospherestring–Only recipes stated for this atmosphere.
conestring–Only recipes whose stated firing includes this cone ("6", "06", "5.5", SK "6a"), or for scale "temperature" this °C. A range matches any cone inside it; recipes tested at it come first. Recipes state…
limitinteger–How many to return, 25 by default.
offsetinteger–How many to skip, for the next page.
processstring–Only recipes stated for this firing process.
scalestring–The scale the cone is in: Orton (the default), SK (JIS R 8101) or a temperature in °C.
searchstring–Only list recipes whose title or a material matches this search text.

No output schema declared.

No examples provided.

match_from_materials ~312

Remakes a glaze recipe from only the materials listed in "have", keeping its unity formula as near as they allow, as Match with what I have does in the Glazecalc app. report.closeness says how near the new unity formula comes to the old, oxide by oxide: close (within 0.02, or 5% of a large amount such as silica's), off, or far (more than three times that), with a verdict (close, fair or poor) and a summary. report.miss and report.best are the solver's own scores, for comparing runs. Raw clay is held to 20% of the batch where that costs the match little (report.capped and allowMore say more). Test any suggestion before using it.

NameTypeReqDescription
allowMorearray–Materials whose suggested cap to lift, as report.capped names them: raw clay is held to 20% of the batch (or the recipe's own share) where that costs the match little.
havearrayyesThe library names of the materials on hand.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarrayyesThe recipe's base materials (not colorants), at most 40 lines.
mustUsearray–Materials on hand that must stay in.

No output schema declared.

No examples provided.

match_with_what_i_have ~208

Remakes one of your recipes, or a recipe you give, from only the materials on your shelf, keeping its unity formula as near as they allow (Match with what I have). report.closeness says how near the new unity formula comes to the old, oxide by oxide, as match_from_materials does. Test any suggestion before using it.

NameTypeReqDescription
allowMorearray–Materials whose suggested cap to lift, as report.capped names them: raw clay is held to 20% of the batch (or the recipe's own share) where that costs the match little.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarray–Or a recipe given line by line.
recipeIdstring–One of your recipes, from list_recipes.

No output schema declared.

No examples provided.

move_to_trash ~140

Moves one of your recipes, materials, notebook entries or firing logs to the Trash, as removing it on the website does. It can be put back from the Trash on the website for 30 days; nothing is deleted for good. A token moves at most 100 an hour, and none while the Trash is full. Remove only what the person asked to remove. Needs an access token that can read and change your records.

NameTypeReqDescription
idstringyesIts id, from list_recipes, list_my_materials, list_notes or list_firings.
kindstringyesWhat it is: a note is a notebook entry.

No output schema declared.

No examples provided.

remove_from_shelf ~68

Takes materials off the shelf of materials on hand, by name. The materials themselves stay. The shelf as it was is kept: undo_shelf_change puts it back. Needs an access token that can read and change your records.

NameTypeReqDescription
materialsarrayyesThe materials, by name.

No output schema declared.

No examples provided.

search_guides ~273

Searches Glazecalc's plain-language guides for potters (glazing from first principles, making a glaze, safe mixing, safety at home with children and pets, firing a kiln, and a companion to John Britt's free glaze course, in English only) in the language asked for, or in English where that language has no match. Returns each matching section's title, anchor, a short excerpt, its address on the website and its resource URI, which resources/read returns in full. Use it for glaze defects, safety, firing and terms, and cite the address.

NameTypeReqDescription
conesstring–How the potter fires, for the parts of the guides that differ: Orton cones (the default), SK cones (JIS R 8101) or by temperature.
guidestring–Only this guide.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
limitinteger–At most this many sections (5 unless asked).
querystringyesWords to look for, such as "crawling", "respirator", "bisque schedule" or "specific gravity".

No output schema declared.

No examples provided.

search_materials ~180

Finds ceramic raw materials (feldspars, clays, frits, fluxes) and, if asked, colorants in Glazecalc's library by name, alias or maker. Use it to find the exact name the other tools take.

NameTypeReqDescription
categorystring–Only this category: feldspar, clay, frit, flux, silica...
includeColorantsboolean–Also search colorants and opacifiers.
limitinteger–The maximum number of materials to return (1 to 50).
querystringyesWords in the name, such as "custer", "ferro 3134" or "kaolin".
regionstring–Where the potter buys materials, so suggestions are ones sold there: US, UK, EU or AU. Leave it out for any.

No output schema declared.

No examples provided.

solve_target ~467

Makes a glaze recipe, in percent, from the materials given whose unity formula comes as near a target as they allow (Solve for a target in the Glazecalc app). The target is a unity formula (moles; the fluxes are scaled to add up to 1) or an oxide analysis (percent by weight of the fired glaze), with potash and soda apart. Give the materials by their library names, or onHand for the materials on the person’s shelf (with a token or connected app that may read it). closeness says how near each oxide comes: close (within 0.02, or 5% of a large amount such as silica’s), off, or far (more than three times that), with a verdict (close, fair or poor) and a summary; unreachable names the target’s oxides nothing given supplies. Raw clay is held to 20% of the batch where that costs the match little (capped and allowMore say more). Test any recipe before using it.

NameTypeReqDescription
allowMorearray–Materials whose suggested cap to lift, as report.capped names them: raw clay is held to 20% of the batch (or the recipe's own share) where that costs the match little.
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
materialsarray–The library names of the materials to make it from. Use search_materials to find the names.
mustUsearray–Materials given that must be in the recipe.
onHandboolean–Make it from the materials on the person’s shelf, as well as any named: needs a token or connected app that may read it.
targetobjectyesThe unity formula or oxide analysis to aim for.

No output schema declared.

No examples provided.

suggest_substitutes ~254

Finds the discontinued or scarce materials in a recipe and the modern ones that replace them, then suggests amounts that keep the unity formula as near as the materials allow, as the Glazecalc app does. report.closeness says how near the new unity formula comes to the old, oxide by oxide, as match_from_materials does. Test any suggestion before using it.

NameTypeReqDescription
allowLeadboolean–Whether materials with lead may be suggested. Off by default.
allowMorearray–Materials whose suggested cap to lift, as report.capped names them: raw clay is held to 20% of the batch (or the recipe's own share) where that costs the match little.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarrayyesThe recipe's base materials (not colorants), at most 40 lines.
regionstring–Where the potter buys materials, so suggestions are ones sold there: US, UK, EU or AU. Leave it out for any.

No output schema declared.

No examples provided.

undo_shelf_change ~64

Puts back the shelf as it was before its last change (by the website, an access token or an assistant). One step back only: a second call finds nothing to undo until the shelf changes again. Needs an access token that can read and change your records.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

update_my_material ~251

Changes one of your own materials (an id from list_my_materials): its name, oxide analysis in weight percent, loss on ignition or notes. Only what is given changes. Recipes already saved keep their own copy of it. The material as it was is kept as an earlier version, so the person can undo the change on the website. Needs an access token that can read and change your records.

NameTypeReqDescription
analysisobject–Its oxides in weight percent, as on a data sheet: { "SiO2": 68.5, "Al2O3": 17.4, "K2O": 9.8 }.
idstringyesThe material, from list_my_materials.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
loinumber–The material's loss on ignition, in percent (0 to 99.9).
namestring–The material's new name.
notesstring–New notes about the material.

No output schema declared.

No examples provided.

update_recipe ~293

Changes one of your saved recipes (an id from list_recipes): its title, its base materials and amounts (the unity formula is worked out again), its notes, firing band or food-surface mark. Only what is given changes. The recipe as it was is kept as an earlier version, so the person can undo the change on the website. Needs an access token that can read and change your records.

NameTypeReqDescription
firingstring–The firing band its limits are checked in: low (cone 06-02), mid (cone 4-6), high (cone 9-11) or top (cone 12 up, where no limit set has figures, so none are checked), as the recipe page chooses it.
foodSurfaceboolean–The recipe's food-surface mark: true if the glaze is for a food-contact surface.
idstringyesThe recipe, from list_recipes.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
linesarray–All of its base materials, in place of the ones it has.
notesstring–Its notes, in place of the ones it has.
titlestring–The recipe's new title.

No output schema declared.

No examples provided.

vary_material ~580

Shows what one material does to a glaze, by putting more and more of it into a base recipe (an ingredient blend or progression test: whiting 0 to 20, say, in 2 to 11 tiles). With mode "add" (the default) it goes on top of the base, so the recipe grows; with mode "replace" the same amount comes out of another material of the base (`instead`), so the total stays the same. Each tile has its amount of the material, its recipe in percent, its key unity formula figures (silica, alumina, boron, the fluxes), silica to alumina, calculated expansion, its place on Stull's chart (stull: region, crazed), the names of the limit cautions it has, and, with a firing, whether its chemistry fits that firing (coneFit verdict). trend sums up what moves from the first tile to the last, and which Stull regions the tiles cross. Give base materials only, no colorants. This is a calculation from published figures, not a test result: the tiles, fired, decide, and the cautions are guides, not a guarantee of food safety.

NameTypeReqDescription
firingobject–The firing, as a cone or a temperature. Leave it out when it is not known. From cone 12 up (about 1320 °C) no published glaze limits reach, so the limits are not checked there; the cone check judges…
fromnumber–The least of it, in the unit the recipe lines share (default 0: the base alone).
insteadstring–With mode "replace": the material of the base that gives way to it.
languagestring–The language for any sentences in the answer, as a BCP 47 tag such as "en", "de" or "ja". Languages Glazecalc does not offer are answered in English.
limitSetstring–The limits to check against, as check_limits takes it: "glazecalc" (the default) or "hesselberth-roy".
materialstringyesThe material to vary, by its library name (search_materials finds it), such as "Whiting".
modestring–"add" (the default): put the material on top of the base. "replace": take the same amount out of `instead`, so the total stays the same.
recipearrayyesThe base recipe the material goes into.
stepsinteger–Tiles from from to to (2 to 11, default 5).
tonumberyesThe most of it, in the unit the recipe lines share: it must be more than from.

No output schema declared.

No examples provided.

Install

How do I install the io.github.CloudCorpRecords/glazemath MCP server?

io.github.CloudCorpRecords/glazemath runs locally as a container image, launched with docker run --rm -i ghcr.io/cloudcorprecords/glazemath:0.1.0. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.

oci · ghcr.io/cloudcorprecords/glazemath

# add to Claude Code
claude mcp add cloudcorprecords-glazemath -- docker run --rm -i ghcr.io/cloudcorprecords/glazemath:0.1.0
Common questions

What is the io.github.CloudCorpRecords/glazemath MCP server?

io.github.CloudCorpRecords/glazemath is an MCP server listed in the public MCP registry as io.github.CloudCorpRecords/glazemath. Ceramic glaze chemistry: unity formulas, limit checks, substitutes, recipes, shelf and firing logs. This page covers its container image (ghcr.io/cloudcorprecords/glazemath).

Is the io.github.CloudCorpRecords/glazemath MCP server safe to use?

io.github.CloudCorpRecords/glazemath scores 36 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.github.CloudCorpRecords/glazemath MCP server expose?

io.github.CloudCorpRecords/glazemath exposes 33 tools: search_materials, get_material, analyze_recipe, check_limits, convert_cone_temperature, and 28 more. Their descriptions and schemas cost roughly 7,745 tokens of context every time the server is loaded.

Is the io.github.CloudCorpRecords/glazemath MCP server still maintained?

io.github.CloudCorpRecords/glazemath is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the io.github.CloudCorpRecords/glazemath MCP server under?

io.github.CloudCorpRecords/glazemath declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.