adapter-builder

adapter-builder is an agent for Claude Code from Chemaclass/agnostic-ai. It costs 11 tokens per session (402 once invoked), scanned A, original, MIT.

An agent for adding support for a new AI command-line tool to agnostic-ai. An adapter is the code that translates the shared project format into a particular tool’s configuration format.

In plain words
What is it for?
It is for implementing and testing a new target in the Go project, including supported agents, skills, rules, or hooks when the target provides them.
Why use it?
It coordinates the code, registration, documentation, example configuration, tests, and changelog updates needed for a complete integration.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; mentions Codex.

Good fit It is for implementing and testing a new target in the Go project, including supported agents, skills, rules, or hooks when the target provides them.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/chemaclass/agnostic-ai/adapter-builder
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.

Clone the repo
git clone --depth 1 https://github.com/Chemaclass/agnostic-ai

Made for: Claude Code.

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 adapter-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/chemaclass/agnostic-ai/adapter-builder/github.svg)](https://agentmods.dev/agents/chemaclass/agnostic-ai/adapter-builder)
Your own site
<a href="https://agentmods.dev/agents/chemaclass/agnostic-ai/adapter-builder"><img src="https://agentmods.dev/badge/agents/chemaclass/agnostic-ai/adapter-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for adapter-builder

Your own site · 80×15
<a href="https://agentmods.dev/agents/chemaclass/agnostic-ai/adapter-builder"><img src="https://agentmods.dev/badge/agents/chemaclass/agnostic-ai/adapter-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 402 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00011 $0.00402
Opus 5.5 $0.00004 $0.00161
Sonnet 5.5 $0.00002 $0.00080
Haiku 4.5 $0.00001 $0.00040

Measured 3d ago against content hash fb181a4f3844, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adapter-builder 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 3d 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.

.agnostic-ai/agents/adapter-builder.md · 25 lines

What it actually says

You add a new target adapter end to end.

Work in the assigned checkout and file scope. Before editing, state one acceptance scenario and non-goals. If the task omits the target or leaves a public format decision unresolved, report that gap before implementing it.

  1. Establish the target name, current official documentation, native configuration paths, and supported spec kinds from the task or linked issue.
  2. Read and follow docs/internal/adding-adapters.md and .agnostic-ai/rules/adapter-pattern.md. Use an existing adapter for file shape. Complete the guide's registration, configuration, import, audit-source, documentation, and test work.
  3. Follow .agnostic-ai/rules/capability-fixtures.md for capability claims, parity tests, and saved expected output. Add a test that fails without each new behavior and read emitted files back to verify their content.
  4. Add generated paths to .gitignore and include the target in this repository's agnostic-ai.yaml example when applicable.
  5. Select checks from docs/internal/contributing.md#choose-checks-for-your-change. Coordinate expensive checks with the caller; do not run a second gate concurrently. Follow its documentation checklist and .agnostic-ai/agents/changelog-curator.md for user-visible records.

Keep vendor research and audit checks to the assigned target. Adding audit sources does not authorize a full audit or issue publication. Leave commits, pushes, and PR actions to the caller unless assigned.

Return the acceptance result, changed files, vendor evidence, checks run with their inputs and outcomes, and any remaining checks or decisions. Write a long report to the caller's supplied path and return that path with a short summary.

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. 3d ago Changed · -15 tokens per session fb181a4f3844
  2. 12d ago Changed · +6 lines 3dd47b3ea922
  3. 17d ago Changed e944046b86a0
  4. 20d ago Changed · -10 lines 118947a35046
  5. 1mo ago Changed · +9 tokens per session bb120419150b
  6. 1mo ago Changed · +3 lines 885a8df076f6
  7. 1mo ago Changed b4a7468c40fa
  8. 1mo ago Changed 67584c75eb17
  9. 2mo ago First seen · 26 lines · 17 tokens per session scan A dbb8295c6e85

Subscribe to this mod's changes

adapter-builder is an agent published in the GitHub repository Chemaclass/agnostic-ai (27 stars, last pushed today), licensed MIT. It adds 11 tokens to every session and 402 once invoked, about $0.0000 per session on Opus 5.5. 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

adapter-builder compared with agents from other repositories

adapter-builder next to 6 agents from other repositories
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adapter-builderChemaclass/agnostic-aiAgent27todayMITA11Claude Code
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agronomistK-Dense-AI/scientific-agentsAgent2371mo agoMITA76Claude Code
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anatomistK-Dense-AI/scientific-agentsAgent2371mo agoMITA83Claude Code
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