---
id: object/codeunit/4352
type: object
title: Codeunit 4352 "Custom Agent Instructions"
summary: Codeunit 4352 "Custom Agent Instructions" in AgentDesignExperience (System.Agents.Designer.CustomAgent). 13 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - agentdesignexperience
versions:
  introduced: "29"
  last_changed: null
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: 4564f797457f4b62a8bd68efbc8a6edf146251ba6dbd90a4515653a5f80352df
evidence:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/AgentDesignExperience/app/CustomAgent/Setup/Instructions/CustomAgentInstructions.Codeunit.al
    title: src/Apps/W1/AgentDesignExperience/app/CustomAgent/Setup/Instructions/CustomAgentInstructions.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
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  posts: []
  guidelines: []
object_type: codeunit
object_id: 4352
name: Custom Agent Instructions
namespace: System.Agents.Designer.CustomAgent
app: AgentDesignExperience
extends: null
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
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counts:
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  procedures: 21
  events: 0
  subscribers: 0
relations:
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  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 4
  called_by: 4
  implements: 0
---

# Codeunit 4352 "Custom Agent Instructions"

> Codeunit 4352 "Custom Agent Instructions" in AgentDesignExperience (System.Agents.Designer.CustomAgent). 13 public procedures. Introduced in BC29, still in BC30.

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

## Properties

| Property | Value |
|---|---|
| Access | Internal |
| Permissions | tabledata "Custom Agent Setup" = rm |

## Procedures

- `DownloadSelectedInstructions(var CustomAgentInstructionsLog: Record "Custom Agent Instructions Log"; AgentUserSecurityId: Guid)`
- `GetInstructions(AgentUserSecurityID: Guid): Text`
- `TryGetInstructions(AgentUserSecurityID: Guid; var AgentInstructions: Text): Boolean`
- `RestoreInstructions(var CustomAgentSetup: Record "Custom Agent Setup"; InstructionsText: Text; InstructionsVersion: Text[100])`
- `SetInstructions(var CustomAgentSetup: Record "Custom Agent Setup"; NewInstructions: Text; var InstructionsVersion: Text[100]; ForceSave: Boolean)`
- `UpdateCustomAgentSetupVersionName(AgentUserSecurityID: Guid; NewVersionName: Text[100])`
- `GetNextVersionNumber(var CustomAgentSetup: Record "Custom Agent Setup"): Text[100]`
- `DownloadCurrentInstructions(InstructionsTxt: Text)`
- `ApplyInstructionsToAgent(var CustomAgentInstructionsLog: Record "Custom Agent Instructions Log"; AgentUserSecurityId: Guid)`
- `SaveInstructionsAsNewVersion(InstructionsTxt: Text; AgentUserSecurityId: Guid): Boolean`
- `MarkCurrentInstructionsAsReadOnly(var CustomAgentSetup: Record "Custom Agent Setup")`
- `GetDefaultEncoding(): TextEncoding` (internal)
- `GetHowToWriteInstructionsUrl(): Text` (internal)

Plus 8 local procedures.

## 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 4100 "Temp Blob"](../codeunit/4100.md) (4 calls: `CreateTextBlobStream → CreateInStream`, `CreateTextBlobStream → CreateOutStream`, `DownloadMultipleInstructions → CreateInStream`, …)
- [Codeunit 425 "Data Compression"](../codeunit/425.md) (4 calls: `DownloadMultipleInstructions → AddEntry`, `DownloadMultipleInstructions → CloseZipArchive`, `DownloadMultipleInstructions → CreateZipArchive`, …)
- [Codeunit 4353 "Agent Designer Environment"](../codeunit/4353.md) (3 calls: `RestoreInstructions → VerifyCanRunOnCurrentEnvironment`, `SetInstructions → VerifyCanRunOnCurrentEnvironment`, `TryGetInstructions → VerifyCanRunOnCurrentEnvironment`)
- [Codeunit 4321 "Agent"](../codeunit/4321.md) (1 call: `UpdateInstructionsOnSetupRecord → SetInstructions`)

## Called by

- [Table 4350 "Custom Agent Setup"](../table/4350.md) (3 calls: `GetInstructions → GetInstructions`, `SetInstructions → SetInstructions`, `TryGetInstructions → TryGetInstructions`)
- [Table 4352 "Custom Agent Instructions Log"](../table/4352.md) (2 calls: `GetInstructions → GetDefaultEncoding`, `SetInstructions → GetDefaultEncoding`)
- [Codeunit 4360 "Custom Agent Session"](../codeunit/4360.md) (1 call: `OnAfterCustomAgentLogin → MarkCurrentInstructionsAsReadOnly`)
- [Page 4352 "Cust. Agent Instructions Log"](../page/4352.md) (1 call: `DownloadSelectedInstructions → DownloadSelectedInstructions`)

## 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: "codeunit", object_name: "Custom Agent Instructions")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.