synthesis-grounding-discipline

synthesis-grounding-discipline is a skill for Claude Code, Codex from synthesisengineering/synthesis-skills. It costs 164 tokens per session (5,828 once invoked), scanned A, original, Apache-2.0.

A set of rules for keeping AI-agent answers tied to evidence from tools and other sources. It focuses on provenance, meaning being able to identify where information came from and whether it was verified.

In plain words
What is it for?
Use it to verify tool results, quote only surfaced information, recheck cached context, and label the source or system layer behind important claims.
Why use it?
It helps prevent agents from presenting imagined events, stale cached information, or failed checks as facts. The rules separate what was actually observed from what was inferred.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: mentions subagents.

Part of the synthesis-skills plugin — 63 skills, 4 hooks shipped together

Good fit Use it to verify tool results, quote only surfaced information, recheck cached context, and label the source or system layer behind important claims.

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Install with agentmods
npx agentmods add skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline
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 synthesisengineering/synthesis-skills --skill synthesis-grounding-discipline
Clone the repo
git clone --depth 1 https://github.com/synthesisengineering/synthesis-skills

Made for: Claude Code, Codex.

Or install synthesis-skills, the plugin that ships this one along with the rest of its 63 skills, 4 hooks.

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 synthesis-grounding-discipline

README.md
[![agentmods](https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline/github.svg)](https://agentmods.dev/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline)
Your own site
<a href="https://agentmods.dev/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline/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 synthesis-grounding-discipline

Your own site · 80×15
<a href="https://agentmods.dev/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-grounding-discipline.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 164 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,828 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00164 $0.05828
Opus 5 $0.00082 $0.02914
Sonnet 5 $0.00033 $0.01166
Haiku 4.5 $0.00016 $0.00583

Measured 11d ago against content hash b0aa28e4e482, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

synthesis-grounding-discipline 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 11d 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/synthesis-grounding-discipline/SKILL.md · 250 lines

How it starts

The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Synthesis Grounding Discipline

A discipline for keeping AI-agent output anchored to external evidence. The failure family it catches is the mirror image of the one synthesis-anti-shortcuts catches: anti-shortcuts stops the agent from doing less than the work requires; grounding discipline stops the agent from claiming more than the evidence supports. Both are narrative-quality optimizations working against external truth — one dismisses real concerns to keep the story tidy, the other invents satisfying completions to keep the story moving.

The shapes in this catalog are universal to LLM agents, not quirks of one model or one workflow. A language model generates the most plausible continuation. Most of the time the plausible and the true coincide, which is exactly what makes the divergent cases dangerous: a fabricated reply reads like a real one, a stale cached fact reads like a fresh one, a null result from a broken probe reads like a verified absence. None of these announce themselves. The only defense is procedural — a set of checks applied at the moments where plausibility and truth come apart.

This skill is that set. Each catalog entry names the rule, the failure shape it prevents (with one anonymized incident vignette — every entry here was paid for in production), and the compliance procedure. A closing self-check compresses the catalog into the questions to ask before any output ships.

When to Apply

  • Before recording any event, decision, message, or state change into a durable file (context files, session logs, transcripts, plans, reports)
  • Before quoting or paraphrasing anything attributed to another person
  • Before propagating a fact from a context file, plan, memory, or earlier conversation into any output
  • Before reporting that something is absent, missing, unsent, undecided, or nonexistent
  • Before writing into a directory or deleting anything
  • Whenever a claim about external system state (reviews, deploys, CI, tickets, branches) is about to enter a draft

Read the full file on GitHub · 250 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 250 lines · 164 tokens per session scan A b0aa28e4e482

Subscribe to this mod's changes

synthesis-grounding-discipline is a skill published in the GitHub repository synthesisengineering/synthesis-skills (18 stars, last pushed today), licensed Apache-2.0. It adds 164 tokens to every session and 5,828 once invoked, about $0.0008 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.

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