property-repro

property-repro is a skill for Claude Code, Codex from plastic-labs/honcho. It costs 74 tokens per session (1,454 once invoked), scanned A, original, AGPL-3.0.

A workflow for reproducing reported Honcho API bugs as failing Hypothesis or Schemathesis tests, then fixing them. These tools generate and check many API inputs rather than checking only one example.

In plain words
What is it for?
Use it for unexpected server errors, wrong status codes, data that does not survive a round trip, request-validation changes, and error-handling changes.
Why use it?
It turns an unclear report, such as a server error or incorrect response, into a repeatable test. The test helps prevent the same API behavior from returning after the fix.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for unexpected server errors, wrong status codes, data that does not survive a round trip, request-validation changes, and error-handling changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/plastic-labs/honcho/property-repro
About the project

Honcho is a memory service for software agents that stores messages and events, builds representations of people and other entities over time, and provides session context, search results, and natural-language insights. It is for developers building agents that need persistent, changing state across conversations and projects, using a managed service, local stack, or self-hosted FastAPI server. The catalogue entries connect coding agents and MCP clients to Honcho’s memory system.

plastic-labs/honcho · 7,793 stars · on GitHub · honcho.dev

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.

Any agent
npx skills add plastic-labs/honcho --skill property-repro
Clone the repo
git clone --depth 1 https://github.com/plastic-labs/honcho

Made for: Claude Code, Codex.

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 property-repro

README.md
[![agentmods](https://agentmods.dev/badge/skills/plastic-labs/honcho/property-repro/github.svg)](https://agentmods.dev/skills/plastic-labs/honcho/property-repro)
Your own site
<a href="https://agentmods.dev/skills/plastic-labs/honcho/property-repro"><img src="https://agentmods.dev/badge/skills/plastic-labs/honcho/property-repro/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 property-repro

Your own site · 80×15
<a href="https://agentmods.dev/skills/plastic-labs/honcho/property-repro"><img src="https://agentmods.dev/badge/skills/plastic-labs/honcho/property-repro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,454 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00074 $0.01454
Opus 5.5 $0.00030 $0.00582
Sonnet 5.5 $0.00015 $0.00291
Haiku 4.5 $0.00007 $0.00145

Measured today against content hash 678be42969a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

property-repro scanned grade A with 1 finding 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 today.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

A failure prints the exception type and a curl command for the shrunk request.
skills/property-repro/SKILL.md · 95 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. today First seen · 95 lines · 74 tokens per session scan A 678be42969a4

Subscribe to this mod's changes

property-repro is a skill published in the GitHub repository plastic-labs/honcho (7,793 stars, last pushed today), licensed AGPL-3.0. It adds 74 tokens to every session and 1,454 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-28.

Related

Other skills, from other repositories

debug-with-memlog

Systematically investigate bugs, errors, test failures, build failures, deployment failures, regressions, performance problems, and unexpected behavior with prior Memlog lessons. Use before proposing fixes, especially after a previous fix failed.

atazifor/engineering-memlog · 49 tokens

systematic-debugging

4-phase root cause debugging: understand bugs before fixing.

NousResearch/hermes-agent · 16 tokens

module-regression

Govern cross-module regression in large repositories with a REGRESSION.md ledger that records each module's downstream consumers and executable acceptance command. After a change, run the changed module and every affected downstream command, and use observed exit codes as regression evidence under the project's…

affaan-m/ECC · 82 tokens

fix-failing-tests

Diagnose a failing test in the googleapis/mcp-toolbox repo and land a fix by reasoning from the actual error: read the failure, reproduce it, shrink it until the cause is forced into the open, then fix the cause. Use this whenever a test or CI job is red, a build breaks after a change, many packages fail at once, or a…

googleapis/mcp-toolbox · 87 tokens

reproduce-bug

Reproduce a reported bug in googleapis/mcp-toolbox and decide whether it is real, delivering an evidence-backed verdict: confirmed, already fixed, misconfiguration, client-side, works as intended, not reproducible, or blocked. Use whenever a maintainer asks you to reproduce, verify, confirm, or investigate a bug…

googleapis/mcp-toolbox · 130 tokens

credit-note-fixer

Fix the tiny credit-note formatting bug and rerun the exact targeted test command.

openai/openai-agents-python · 21 tokens