---
id: object/page/4353
type: object
title: Page 4353 "Custom Agent Instructions Part"
summary: Page 4353 "Custom Agent Instructions Part" in AgentDesignExperience (System.Agents.Designer.CustomAgent). 9 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - page
  - agentdesignexperience
versions:
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  deprecated: null
review:
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generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
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evidence:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/AgentDesignExperience/app/CustomAgent/Setup/Instructions/CustomAgentInstructionsPart.Page.al
    title: src/Apps/W1/AgentDesignExperience/app/CustomAgent/Setup/Instructions/CustomAgentInstructionsPart.Page.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
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object_type: page
object_id: 4353
name: Custom Agent Instructions Part
caption: Designer - Instructions
namespace: System.Agents.Designer.CustomAgent
app: AgentDesignExperience
extends: null
first_version: "29"
last_version: "30"
present_in:
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  - "30"
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source_major: "29"
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counts:
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  controls: 1
  actions: 4
relations:
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---

# Page 4353 "Custom Agent Instructions Part"

> Page 4353 "Custom Agent Instructions Part" in AgentDesignExperience (System.Agents.Designer.CustomAgent). 9 public procedures. Introduced in BC29, still in BC30.

AgentDesignExperience · System.Agents.Designer.CustomAgent · captioned "Designer - Instructions" · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/AgentDesignExperience/app/CustomAgent/Setup/Instructions/CustomAgentInstructionsPart.Page.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Caption | Designer - Instructions |
| Extensible | false |
| PageType | ListPart |
| ApplicationArea | All |

## Fields on this page

Layout controls in source order, grouped by the container they sit in. Shows: the table field a control is bound to (or its expression as written); ToolTip: the control's own, else the bound field's (marked).

| Group | Control | Shows | ToolTip |
|---|---|---|---|
| Instructions | InstructionsTxtControl | add-in WebPageViewer | — |

## Actions

| Group | Action | ToolTip | Runs |
|---|---|---|---|
| Processing | Save to history | Save the current instructions as a new version with a custom name. |  |
|  | View history | View the history of changes made to the agent instructions and restore an earlier version if needed. |  |
|  | Download instructions | Download the current agent instructions to a text file. |  |
|  | How to write instructions | Opens a web page that provides more information about defining instructions and building agents. |  |

## Procedures

- `SetUserSecurityId(UserSecId: Guid)` (internal)
- `GetInstructions(): Text` (internal)
- `SetInstructions(NewInstructions: Text): Text` (internal)
- `SetReadOnlyMode(ReadOnly: Boolean)` (internal)
- `FillAddIn()` (internal)
- `SetIsTemporary(NewIsTemporary: Boolean)` (internal)
- `SetInstructionsHistoryVisible(NewVisible: Boolean)` (internal)
- `SetHideDeveloperUI(NewHideDeveloperUI: Boolean)` (internal)
- `RefreshInstructionsAddin(ReadInstructionsAgain: Boolean)` (internal)

Plus 1 local procedures.

## Triggers

OnOpenPage

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 4365 "Agent Designer Utilities"](../codeunit/4365.md) (1 call: `GetInstructionsTextControlContent → EncodeContent`)
- [Control add-in "WebPageViewer"](../controladdin/webpageviewer.md) (1 call: `FillAddIn → SetContent`)

## Across versions

- Present in: BC29-30
- Changed (declaration) in: none

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "page", object_name: "Custom Agent Instructions Part")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.