Ptally

Fetch Ptally documentation by topic. Call BEFORE building or editing a config to load the rules and reference material you need. Topics: "rules" = agent rules, constraints, expression syntax, quality gates, and debugging guidance (start here); "readme" = full engine reference with step types, query language, input/output blocks, and code examples.

Fetch the full JSON schema for Ptally project config files. Use to check exact field requirements, allowed step types, and property constraints.

无需输入参数。

Server-side schema validation of a project config. Returns { valid: true/false, errors: [...] } with the JSON path, keyword, and message for each issue. Prefer local validation against get_schema during authoring; use this as a ground-truth check, including on an amended model before handing it back to the user as a file. Pass exactly one of inline `project` or a base64-gzipped `project_gz` (if the inline form is too large for your client); passing neither or both returns an error result.

Fetch a worked-example Ptally project for a common line of business. Each example is a small, fully valid project with realistic collection tables, calculations, exclusions and refers, plus an embedded tests[] suite for reference. Use as a template — copy and adapt rather than authoring from scratch. Pass no arguments (or `list: true`) to get the catalog.

List every project stored on this self-host instance. Returns `{ count, projects: [{ project_reference, name, description }] }`. Descriptions are truncated to 100 characters so the response stays compact — call get_project for the full record. Archived projects are excluded.

无需输入参数。

Fetch a project by `project_reference` from the self-host store. Optional `version_reference` pins to a specific version of that project (a version from another project is a tool error); otherwise the latest live (published or approved) version is used, or the latest non-archived version of any status if none is live. Returns `{ project_reference, version_reference, version, name, description, status, summary, created_at, updated_at, project_url, version_url, latest_draft, clipped_collections, next_steps, model }`. The model is a summary for reading, never a file to hand back. Every `collection` step is stamped with `__context` (`total_rows`, `shown_rows`, `columns`, `shape`, `truncated`, `patchable`; an empty table gets `total_rows: 0`, `columns: []`, `patchable: true`): tables of up to 100 rows are shown whole and can be changed with patch_version; bigger ones are clipped, listed in `clipped_collections`, and can only change by the user downloading the model from `version_url`, you amending it, and the user uploading it. `latest_draft` is the newest draft version (null if none) — patches go there, so call get_project again with its version_reference before patching. Follow `next_steps` and tell the user which route applies before making changes. All other model content — input.format, steps, expressions, output — is returned verbatim so an LLM caller can understand what the project does and how to build a valid input payload. Precursor to run_quote and patch_version.

Dry-run a quote against a stored project. Takes `project_reference`, an optional `version_reference` (defaults to the latest live version; there is no fallback to drafts, so pass `version_reference` to price one — it must belong to the project and not be archived, else a tool error), and an `input` payload that matches the project's input schema. Runs the pricing engine and returns the quote envelope — `output`, `result`, `valid`, `status`, `error`, the engine's `errors` log, `exec_time_ms`, `dry_run: true` and a null `quote_reference` — WITHOUT persisting a quotes row. Call get_project first to inspect `input.format` and build a valid input.

Price every test in a version's tests[] against that version's stored model and compare each with its expected output. Takes `version_reference` (any status but archived — a draft after patch_version, or a live version for a baseline). Runs against the stored model, so a patch saved a moment ago is included. A test passes when its result is within 0.005 of the expected result and its valid flag equals the expected valid. Expectations are read from output { result, valid }, or, when output has neither (tests imported from the hosted service), from result { result, valid }; `expected_from` says which. A test with neither is priced but unchecked (passed: null). Returns `{ project_reference, version_reference, version, status, updated_at, total, passed, failed, unchecked, results: [{ id, name, passed, expected: { result, valid }, expected_from, actual: { result, valid }, problems, errors }], version_url, next_steps }` — `problems` says why a test failed, `errors` is up to 5 of the engine's step errors for that run. Nothing is persisted. Use after patch_version, after adding or changing tests, or before a change to record the baseline. To change a test's expected output, patch_version on /tests/<test id>/output/result (drafts only) — output takes precedence over result.

Change a DRAFT version's stored model with an RFC 6902 JSON Patch, merged on the server. Use it for targeted edits; any change to a clipped collection (__context.patchable: false) goes through download and upload instead (see next_steps in get_project). BEFORE CALLING 1. The version must be a draft: use get_project's latest_draft. If it is null, ask the user to click New Version on the project page (it copies the live model), then call get_project again. 2. Call get_project with the draft's version_reference and build every path from that response. Pass its updated_at as base_updated_at. 3. Tell the user what you will change (old → new) and get their go-ahead. PATHS (JSON Pointer) - Name steps, tests and other id'd array elements by id (else key) instead of index: /steps/<step id>/... and /tests/<test id>/... Ids survive other steps being inserted or removed in the same patch. - Model layout: /meta/..., /input/format/<input key>/... (format is an object keyed by input key), /steps/<id>/..., /output/format/<key>/..., /tests/<id>/... - Collection rows by index. Compressed collection ([[col1, col2, ...], [v1, v2, ...], ...]): index 0 is the header row, so the first data row is /collection/1, and a cell is /collection/<row>/<column index>. Uncompressed collection (array of row objects): the first row is /collection/0, and a cell is /collection/<row>/<column name>. Check __context.shape and __context.columns. - Append with "-" (/steps/-, /steps/<id>/collection/-). Insert at a numeric index; step order is execution order, so a new step goes after the steps whose outputs it reads. - Escape "~" as ~0 and "/" as ~1 inside a segment. EXAMPLES - Change a rate cell: {"op":"replace","path":"/steps/region_rates/collection/1/1","value":4.5} - Guard then change: [{"op":"test","path":"/steps/base_premium/formula","value":"<current formula>"},{"op":"replace","path":"/steps/base_premium/formula","value":"<new formula>"}] - Add a table row: {"op":"add","path":"/steps/type_factors/co

Diagnostic snapshot of the deployed MCP server plus a live probe of its store (sqlite or Postgres). Returns server name and version, protocol version, root, boot time, advertised tool names and count, a hash of the tool surface, and `store` — `{ ok, latency_ms, counts: { projects, quotes } }` from counting rows in the projects table (one row per version) and the quotes table, or `{ ok: false, latency_ms, error }`.

无需输入参数。