fix-control-renderer

A repair guide for SAP UI5 control renderer problems reported by the UI5 linter. A renderer is the code that draws a UI control on the screen.

In plain words
What is it for?
Use it when linter findings concern missing or deprecated renderers, RenderManager icons, deprecated rerender overrides, or renderer class declarations.
Why use it?
It fixes renderer declarations, outdated rendering APIs, missing imports, and lifecycle code that cannot be safely corrected automatically.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ui5/plugins-coding-agents/fix-control-renderer
Any agent
npx skills add UI5/plugins-coding-agents --skill fix-control-renderer
Clone the repo
git clone --depth 1 https://github.com/UI5/plugins-coding-agents

Made for: Claude Code, Codex.

Per session 196 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,910 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00196 $0.03910
Opus 5 $0.00098 $0.01955
Sonnet 5 $0.00039 $0.00782
Haiku 4.5 $0.00020 $0.00391

Measured 2d ago against content hash 5a5d75b9a5ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fix-control-renderer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/ui5-modernization/skills/fix-control-renderer/SKILL.md · 470 lines

How it starts

The opening of the file, as written. The whole thing — 470 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fix Control Renderer Issues

This skill fixes Control renderer issues that the UI5 linter detects but cannot auto-fix because they require understanding of the control's rendering behavior and module dependencies.

Linter Rules Handled

Rule ID Message Pattern This Skill's Action
no-deprecated-control-renderer-declaration Control '...' is missing a renderer declaration Add renderer: null or import renderer
no-deprecated-control-renderer-declaration Deprecated declaration of renderer '...' for control '...' Import renderer module and assign directly
no-deprecated-api Use of deprecated renderer detected. Define explicitly the {apiVersion: 2} Add apiVersion: 2 to renderer object
no-deprecated-api "sap/ui/core/IconPool" module must be imported when using RenderManager's icon() method Add IconPool import
no-deprecated-api Override of deprecated method 'rerender' in control '...' Remove override, move code to lifecycle hooks
ui5-class-declaration The control renderer must be a static property Make renderer property static

When to Use

Apply this skill when you see linter output like:

MyControl.js:5:1 error Control 'my.app.control.MyControl' is missing a renderer declaration  no-deprecated-control-renderer-declaration
MyControl.js:10:5 error Deprecated declaration of renderer 'my.app.control.MyControlRenderer' for control 'my.app.control.MyControl'  no-deprecated-control-renderer-declaration
MyControl.js:15:5 error Use of deprecated renderer detected. Define explicitly the {apiVersion: 2} parameter  no-deprecated-api
MyControl.js:20:5 error "sap/ui/core/IconPool" module must be imported when using RenderManager's icon() method  no-deprecated-api
MyControl.js:25:5 warning The control renderer of 'MyControl' must be a static property  ui5-class-declaration

Background: Why apiVersion: 2?

UI5's rendering framework evolved from an immediate DOM manipulation model (apiVersion 1) to a semantic rendering model (apiVersion 2 and 4). The key differences:

Read the full file on GitHub · 470 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 470 lines · 196 tokens per session scan A 5a5d75b9a5ac

Subscribe to this mod's changes

fix-control-renderer is a skill published in the GitHub repository UI5/plugins-coding-agents (34 stars, last pushed 14d ago), licensed Apache-2.0. It adds 196 tokens to every session and 3,910 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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