harvest

harvest is a skill for Claude Code, Codex from grainulation/grainulator. It costs 16 tokens per session (924 once invoked), scanned A, original, MIT.

A sprint analytics tool for examining the kinds of claims in a project, their evidence, their age, and the project's delivery pace. A sprint is a focused period of planned work.

In plain words
What is it for?
Use it to review claim and evidence distributions, find stale claims, measure velocity, and optionally score predictions or create an HTML report.
Why use it?
It turns scattered project information into a retrospective, making weak evidence, outdated claims, and delivery trends easier to see.

Skill for Claude CodeCodex

Part of the grainulator plugin — 19 skills, 1 agent, 2 hooks, 4 MCP servers shipped together

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 skills/grainulation/grainulator/harvest
Any agent
npx skills add grainulation/grainulator --skill harvest
Clone the repo
git clone --depth 1 https://github.com/grainulation/grainulator

Made for: Claude Code, Codex.

Or install grainulator, the plugin that ships this one along with the rest of its 19 skills, 1 agent, 2 hooks, 4 MCP servers.

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 harvest

README.md
[![agentmods](https://agentmods.dev/badge/skills/grainulation/grainulator/harvest.svg)](https://agentmods.dev/skills/grainulation/grainulator/harvest)
Your own site
<a href="https://agentmods.dev/skills/grainulation/grainulator/harvest"><img src="https://agentmods.dev/badge/skills/grainulation/grainulator/harvest.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 924 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 $0.00016 $0.00924
Opus 5 $0.00008 $0.00462
Sonnet 5 $0.00003 $0.00185
Haiku 4.5 $0.00002 $0.00092

Measured 4d ago against content hash f385d2a47775, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

harvest 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.

skills/harvest/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/harvest -- Sprint analytics and retrospective

The user wants quantitative analysis of the current sprint: claim type distributions, evidence quality, stale claims, and velocity metrics.

Arguments

$ARGUMENTS

Optional: --full to generate an HTML retrospective report. --calibrate to run prediction scoring.

Instructions

  1. Detect the sprint directory:

    • Run wheat_status to get the current sprint metadata.
    • Identify the sprint directory from the status output (the directory containing claims.json).
    • If no active sprint is found, check the current working directory for a claims.json file.
    • If still not found, stop and tell the user: "No active sprint detected. Run /init to start one."
    • Store the resolved directory as <dir> for subsequent steps.
  2. Run type/evidence analysis:

    • Execute: npx @grainulation/harvest analyze <dir>
    • This returns claim type distribution (constraint, factual, estimate, risk, recommendation, feedback) and evidence tier distribution (stated, web, documented, tested, production).
    • Capture the output for the summary.
  3. Run stale claim detection:

    • Execute: npx @grainulation/harvest decay <dir> --days 7
    • This flags claims that haven't been updated, corroborated, or challenged in 7+ days.
    • Capture the list of stale claim IDs and their ages.
  4. Display the analytics summary:

    Harvest: <sprint-slug>
    ─────────────────────────────
    
    Claim distribution:
      constraint: <n>  |  factual: <n>  |  estimate: <n>
      risk: <n>  |  recommendation: <n>  |  feedback: <n>
    
    Evidence quality:
      stated: <n>  |  web: <n>  |  documented: <n>  |  tested: <n>  |  production: <n>
    
    Weak areas:
      - <list any evidence tiers with 0 claims, or types with heavy concentration>
      - <flag if >60% of claims share the same type (type monoculture)>
      - <flag if >50% of evidence is "stated" or "web" (weak evidence base)>
    
    Stale claims (<n> total):
      - <id>: "<summary>" — <age> days stale
      - ...
    
    Velocity:
      <output from analyze, e.g. claims/day, time between phases>
    

Read the full file on GitHub · 97 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 · 97 lines · 16 tokens per session scan A f385d2a47775

Subscribe to this mod's changes

harvest is a skill published in the GitHub repository grainulation/grainulator (86 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 924 once invoked, about $0.0001 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.