CHANGELOG

CHANGELOG is an agent for coding agents from usetheokit/theokit. It costs 0 tokens per session (43,499 once invoked), scanned A, original, Apache-2.0.

An agent that documents changes to the CHANGELOG of the @theokit/agents package. A changelog is a running record of software releases and what changed in each one.

In plain words
What is it for?
Use it to record or review minor and major release changes, tool availability, dependency version updates, and reasons for previously missing features.
Why use it?
It gives developers a place to understand release differences, including newly exposed tools, dependency changes, and compatibility notes.

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/usetheokit/theokit/changelog
Clone the repo
git clone --depth 1 https://github.com/usetheokit/theokit

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for CHANGELOG

README.md
[![agentmods](https://agentmods.dev/badge/agents/usetheokit/theokit/changelog.svg)](https://agentmods.dev/agents/usetheokit/theokit/changelog)
Your own site
<a href="https://agentmods.dev/agents/usetheokit/theokit/changelog"><img src="https://agentmods.dev/badge/agents/usetheokit/theokit/changelog.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 43,499 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 $0.00000 $0.43499
Opus 5 $0.00000 $0.21750
Sonnet 5 $0.00000 $0.08700
Haiku 4.5 $0.00000 $0.04350

Measured 4d ago against content hash ec4e8ab8401d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

CHANGELOG 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 4d 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.

packages/agents/CHANGELOG.md · 2,448 lines

How it starts

The opening of the file, as written. The whole thing — 2,448 lines — stays where its author put it; the contents beside it link to each section on GitHub.

@theokit/agents

12.1.0

Minor Changes

  • 0f88b0e: @theokit/agents/tools now forwards the image tool, and the @theokit/sdk-tools floor moves to ^0.27.1 to make that possible.

    Three symbols reach the layer for the first time: createViewImageTool, CreateViewImageToolOptions and DEFAULT_MAX_IMAGE_BYTES. view_image lets an agent LOOK at an image in the project — read the bytes, confine the path, and hand the model an image block rather than a base64 blob it cannot see.

    This is a gap closing rather than a feature arriving. tools-entry.ts states that the surface is preserved WHOLE and that any deliberately withheld symbol carries its reason in writing; these three were absent with no reason, because the pinned ^0.26.1 did not publish them. The layer was not withholding anything — its dependency was short. The cost was measurable: view_image was the only tool a consumer had to write by hand, in a registry where the other nine were built-ins, and an image reader that honours any path is a file-exfiltration primitive with a friendly name — exactly the code that should not be rewritten per product.

    tests/unit/tools-view-image-parity.test.ts had been skipping loudly for this reason and turned itself back on the moment the floor moved. Its two behavioural assertions were rewritten to observe handler rather than toModelOutput: Tool.create consumes the shaping it is given, so the returned tool carries name, description, inputSchema and handler and nothing else — which the source states in its own header. The behaviour they pin is unchanged and now actually measured: a readable image reaches the model as exactly ONE image block with no leading text, and a failed read stays a text envelope so the model can read the error and retry.

12.0.0

Major Changes

  • 8691f5c: @theokit/agents/pty is gone. The PTY backend now lives in @theokit/agents-pty, and installing @theokit/agents no longer compiles a terminal.

Read the full file on GitHub · 2,448 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. 4d ago First seen · 2,448 lines · 0 tokens per session scan A ec4e8ab8401d

Subscribe to this mod's changes

CHANGELOG is an agent published in the GitHub repository usetheokit/theokit (5 stars, last pushed 5d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 43,499 tokens. 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 2026-08-31.