ChainWeaver tests.instructions.md

A set of testing rules for Python projects using pytest, including file organization, assertions, error cases, and limits on mocking.

In plain words
What is it for?
Use it when writing or reviewing unit and integration tests for ChainWeaver code.
Why use it?
It prevents inconsistent test structure and keeps tests aligned with the project's chosen framework and conventions.

Instructions file for GitHub Copilot

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 instructions/dgenio/chainweaver/tests
Clone the repo
git clone --depth 1 https://github.com/dgenio/ChainWeaver

Made for: GitHub Copilot.

Per session 201 This file is loaded in full into every session.
When invoked 201 The same file — it is already loaded in full.
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 $0.00201 $0.00201
Opus 5 $0.00101 $0.00101
Sonnet 5 $0.00040 $0.00040
Haiku 4.5 $0.00020 $0.00020

Measured yesterday against content hash d7ee282b6dca, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ChainWeaver tests.instructions.md 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 yesterday.

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/instructions/tests.instructions.md · 29 lines

What it actually says

Tests

File boundary

  • tests/helpers.py — shared Pydantic schemas and tool functions.
  • tests/conftest.py — pytest fixtures that compose objects from helpers.py.

Do not merge these files. Do not put schemas in conftest.py or fixtures in helpers.py.

Framework rules

  • pytest only. No unittest.TestCase, no self.assertEqual.
  • Plain assert statements (pytest rewrites them).
  • No mocking of internal ChainWeaver classes unless testing integration boundaries.
  • Test both success and failure/error paths.

Organization

  • Unit tests grouped by module (test_{module}.py).
  • Integration tests grouped by scenario.
  • Test classes grouped by scenario (e.g., TestSuccessfulExecution).

See workflows.md § Testing conventions.

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. yesterday First seen · 29 lines · 201 tokens per session scan A d7ee282b6dca

Subscribe to this mod's changes

ChainWeaver tests.instructions.md is an instructions file published in the GitHub repository dgenio/ChainWeaver (6 stars, last pushed 2d ago), licensed Apache-2.0. It adds 201 tokens to every session, 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 2026-08-31.