waiver-writer

waiver-writer is a skill for Claude Code, Codex from 45ck/skill-harness. It costs 29 tokens per session (583 once invoked), scanned A, original, MIT.

A guide for recording an approved exception when a specification cannot currently meet an evidence requirement. It requires a reason, an accountable owner, and an expiry date.

In plain words
What is it for?
Use it to write inline or standalone specgraph waivers and document when the exception must be reviewed again.
Why use it?
It keeps deferred or impossible verification visible instead of silently bypassing the requirement.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write inline or standalone specgraph waivers and document when the exception must be reviewed again.

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Install with agentmods
npx agentmods add skills/45ck/skill-harness/waiver-writer
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 45ck/skill-harness --skill waiver-writer
Clone the repo
git clone --depth 1 https://github.com/45ck/skill-harness

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 waiver-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/45ck/skill-harness/waiver-writer/github.svg)](https://agentmods.dev/skills/45ck/skill-harness/waiver-writer)
Your own site
<a href="https://agentmods.dev/skills/45ck/skill-harness/waiver-writer"><img src="https://agentmods.dev/badge/skills/45ck/skill-harness/waiver-writer/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 waiver-writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/45ck/skill-harness/waiver-writer"><img src="https://agentmods.dev/badge/skills/45ck/skill-harness/waiver-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 583 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 $0.00029 $0.00583
Opus 5 $0.00015 $0.00292
Sonnet 5 $0.00006 $0.00117
Haiku 4.5 $0.00003 $0.00058

Measured 6d ago against content hash e0109d6a9599, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

waiver-writer 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 6d 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.

packs/specgraph-skills/skills/waiver-writer/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Write an evidence waiver that records why a spec requirement is being bypassed and when it should be revisited.

When to use a waiver

Only create a waiver when:

  • The required evidence is architecturally impossible (e.g., E4 for a design-only spec)
  • The evidence will be deferred to a future milestone with a known date
  • A conscious risk decision has been made and approved

Do not waive requirements just because they're inconvenient. Prefer lowering the required_evidence threshold in the spec instead.

Inline waiver format (spec frontmatter)

waivers:
  - kind: missing-verification     # e.g. missing-verification, missing-implementation
    target: "*"                    # dimension or subject targeted
    owner: eng-lead                # accountable person or team (not a role title)
    reason: "Human-readable justification — why this is acceptable"
    expires: "2026-09-30"          # ISO date after which the waiver must be renewed

After adding, run specgraph waivers to confirm the waiver is recognized.

Standalone waiver file

Create a file at docs/waivers/<SPEC-ID>-<dimension>.md:

---
spec_id: SPEC-001
dimension: implementation
reason: "Detailed justification"
expires: "2026-09-30"
approved_by: "Team Lead"
---

## Context

Explain the architectural or timeline constraint that makes this evidence unreachable.

## Risk acknowledgement

State what risk is accepted by waiving this requirement.

## Renewal condition

Describe what must be true before this waiver is renewed or removed.

Use a standalone file when:

  • The justification is long or references external documents
  • The spec is in accepted state (stronger justification required)
  • Multiple dimensions need separate waivers with different owners

Checking waivers

specgraph waivers            # list all active waivers
specgraph waivers SPEC-001   # waivers for one spec

Rules

  1. Set expires no more than 90 days out unless there is a documented milestone dependency.
  2. owner / approved_by must name an accountable person or team, not a role title.
  3. The reason must be self-contained — it should make sense without reading other context.
  4. After adding a waiver, run specgraph waivers to confirm it is recognized.
  5. Waivers for accepted-state specs require stronger justification than in_progress specs.
  6. Config file is .specgraph/config.json (falls back to .agent-docs/config.json).

Read the full file on GitHub · 76 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. 6d ago First seen · 76 lines · 29 tokens per session scan A e0109d6a9599

Subscribe to this mod's changes

waiver-writer is a skill published in the GitHub repository 45ck/skill-harness (15 stars, last pushed 2mo ago), licensed MIT. It adds 29 tokens to every session and 583 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 2026-09-03.