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read_list_column

Read the first row's value of a dynamic-list column by replaying a native list-form read, with optional refresh for consistent results.

Instructions

Read the CURRENT (first) ROW's value of a dynamic-list (dynlist) column natively — the «Я открываю основную форму списка справочника … + перехожу к первой строке + я запоминаю значение поля с именем 'X'» equivalent for a catalog LIST form. Opens the list at open_link (e.g. e1cib/list/Справочник.Товары), positions to the first row, and reads column (e.g. Наименование / Код) of the resolved dynlist table. By default the table is resolved from the live descriptor (single table -> that table; metadata-name/legacy Список matches when needed); pass table to select explicitly. Returns {table, column, nav_link, value, captured_value, list_refresh, table_resolution}.

MECHANISM: a FAITHFUL FULL-SEQUENCE replay of a genuine list-form read (navigate -> activate -> render/data-load -> position -> read), with GUID rebinder rebinding the per-session window GUIDs and the nav-link + column re-targeted in-frame. (A piecemeal splice does NOT work — the dynlist needs the interaction-ready open state a splice cannot reach; use read_table_cell for FORM tables, where row 1 is current on open.) Live-verified (against OData): Товары/Наименование->«Обувь», Товары/Код->«000000001», Контрагенты/Наименование->«Покупатели», Валюты/Наименование->«EUR». CURRENCY: a dynamic list is async/eventually-consistent, so refresh=True (default) forces an «Обновить»/F5 requery and polls-until-stable before reporting, so a value=None only ever means a genuinely empty cell — never a not-yet-loaded list; refresh=False opts out (records "no refresh applied") for absence assertions. list_refresh records the refresh method + poll outcome. Table-resolution failures return structured list-table-* diagnostics and do NOT run a wrong-table replay or call the list genuinely empty.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
hostNo127.0.0.1
portNo
tableNo
columnYes
refreshNo
open_linkYes
capture_dirNolistform-read

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.2/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden and does so: it discloses the async/eventually-consistent nature of dynlists, that refresh=True forces an F5 requery and polls until stable so value=None is trustworthy, that refresh=False opts out, and that table-resolution failures emit structured diagnostics rather than a false empty. This is exactly the behavioral context an agent needs and gets from nothing else.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Purpose and the key usage constraint are front-loaded, but the definition is bloated: an embedded Russian-language narrative, a MECHANISM paragraph justifying the replay approach, and live-verification examples that inform an implementer more than a caller. The refresh/consistency content earns its place; the replay-justification prose does not.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a high-complexity tool with an output schema (which covers the returns, redundantly re-listed here), the description is quite complete on behavior and caveats. The remaining gap is that three connection/capture parameters are undocumented, and no permission or authentication prerequisites are stated.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate, and it does so for four of seven parameters (column, open_link and table with examples, refresh with default semantics). host, port, and capture_dir are never explained, leaving real gaps. Because the schema provides no per-parameter help, this is only partially adequate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The opening sentence gives a specific verb (read), a precise resource (current/first row value of a dynamic-list column), and a specific context (catalog LIST form). It then explicitly differentiates itself from the sibling read_table_cell by scoping that tool to FORM tables, so an agent can route correctly without opening either schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives an explicit alternative (read_table_cell for FORM tables) and a conditional rule for refresh (True default vs False for absence assertions). It does not, however, address when to prefer this over the other list-reading siblings (read_list_row, read_list_grid, read_list_grid/search_list), leaving some routing ambiguity.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.