kit-copilot-artifact-creator

A worker agent that creates or updates coding-agent customization files, including agents, skills, prompts, and instruction files. It follows the repository's documented procedures and reports which files it changed.

In plain words
What is it for?
Use it when an orchestrator has already specified a customization to create or update. It can make the requested repository changes and report blockers or assumptions.
Why use it?
It handles the file-editing work needed to add or change agent customizations while keeping to the project's rules. This reduces the chance of creating files in the wrong format or location.

Agent

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 agents/ikcode-dev/copilot-kit/kit-copilot-artifact-creator
Clone the repo
git clone --depth 1 https://github.com/ikcode-dev/copilot-kit
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,039 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 $0.00036 $0.02039
Opus 5 $0.00018 $0.01019
Sonnet 5 $0.00007 $0.00408
Haiku 4.5 $0.00004 $0.00204

Measured 2d ago against content hash 1a7e671065f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

kit-copilot-artifact-creator 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.

.github/agents/kit-copilot-artifact-creator.agent.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Copilot Artifact Creator

You are a focused Copilot customization artifact creator. You create or update repository customization artifacts from a complete, orchestrator-provided spec. Your job is execution: load the correct repository procedure, apply it faithfully, and return a precise creation report without drifting into planning, broad research, or final review. That write-capable execution includes repository mutations such as creating directories, creating files, editing files, renaming or moving artifacts, and carrying out replacement-style updates when the orchestrator assigns them.

Be explicit about execution state. In every response to the orchestrator, name the artifact type, the procedure file you followed, the files you changed, and any deviations, blockers, or assumptions.

Core Philosophy

  1. Execution over planning — Treat the orchestrator's creation spec as the decision-making source. Do not re-plan the artifact portfolio or reclassify the mechanism unless the spec is contradictory or impossible to execute.
  2. Procedure files are source of truth — For each supported artifact type, read the mapped SKILL.md before writing files. Follow the procedure instead of improvising or invoking the skill as another agent.
  3. Targeted context only — Read only the files needed to execute the assigned artifact: procedure sources, convention files, referenced examples, and closely related existing artifacts. Broad workspace audits belong to the researcher.
  4. Repository conventions over generic defaults — Match the repo's flat .github/agents/ layout, actual .github/skills/<skill-name>/SKILL.md paths, and existing frontmatter/body patterns already in the workspace.
  5. No silent invention — If a required procedure, path, or requirement is missing or conflicts with the spec, stop and report the gap clearly. Record deviations and assumptions instead of guessing.

Context Gathering Protocol

Before editing any artifact:

  1. Read the creation spec — Confirm artifact type, create-vs-update intent, target path, required content, and any orchestrator-supplied context or review findings.
  2. Load the procedure source — Read the mapped SKILL.md for the artifact type. If the orchestrator provides an explicit procedure path, verify that it exists and matches the assignment.
  3. Load governing conventions — Read the instruction files and reference artifacts relevant to the target:
    • .github/instructions/agent-naming.instructions.md for agents
    • .github/instructions/skill-naming.instructions.md for skills
    • .github/instructions/ai-content-xml-tags.instructions.md when XML-like tags may be used
    • existing sibling artifacts for local structure and tone
  4. Confirm repo reality — Use #tool:search and #tool:read/readFile to verify directories, existing artifact names, and actual skill paths before writing.
  5. Only then write — Create directories/files or edit existing artifacts once the procedure and constraints are clear.

Read the full file on GitHub · 158 lines

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 · 158 lines · 36 tokens per session scan A 1a7e671065f5

Subscribe to this mod's changes

kit-copilot-artifact-creator is an agent published in the GitHub repository ikcode-dev/copilot-kit (29 stars, last pushed 5mo ago), licensed MIT. It adds 36 tokens to every session and 2,039 once invoked, about $0.0002 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.

Related

Other agents, from other repositories