proposal-builder

proposal-builder is a skill for Claude Code, Codex from alebgl77/claude-inc. It costs 66 tokens per session (721 once invoked), scanned A, original, MIT.

A proposal-writing workflow for turning confirmed client needs and call notes into quotes or offers with options, pricing, timing, responsibilities, terms, and a next step.

In plain words
What is it for?
Use it after discovery or a demo call to create Good, Better, and Best options, explain value, set scope and exclusions, and prepare the commercial terms.
Why use it?
It prevents proposals from becoming generic brochures by grounding them in the client’s stated problems, budget signals, decision process, and deadline.

Skill for Claude CodeCodex

Part of the claude-inc plugin — 46 skills, 3 commands, 8 agents 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/alebgl77/claude-inc/proposal-builder
Any agent
npx skills add alebgl77/claude-inc --skill proposal-builder
Clone the repo
git clone --depth 1 https://github.com/alebgl77/claude-inc

Made for: Claude Code, Codex.

Or install claude-inc, the plugin that ships this one along with the rest of its 46 skills, 3 commands, 8 agents.

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 proposal-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/alebgl77/claude-inc/proposal-builder.svg)](https://agentmods.dev/skills/alebgl77/claude-inc/proposal-builder)
Your own site
<a href="https://agentmods.dev/skills/alebgl77/claude-inc/proposal-builder"><img src="https://agentmods.dev/badge/skills/alebgl77/claude-inc/proposal-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 721 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 $0.00066 $0.00721
Opus 5 $0.00033 $0.00360
Sonnet 5 $0.00013 $0.00144
Haiku 4.5 $0.00007 $0.00072

Measured 4d ago against content hash a8c235e962b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

proposal-builder 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/proposal-builder/SKILL.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Proposal Builder — Rainmaker

"A proposal is the call you already had, written down."

When to use

  • "Write the proposal for {client}"
  • "They asked for a quote"
  • "Turn these call notes into an offer"
  • After call-prep + the call itself; hand the notes over — the proposal should contain zero new ideas

Workflow

  1. Harvest the inputs: call notes, agreed pains, stated budget signals, decision process, deadline. Missing a pain confirmed by the client? Stop and say so — a proposal without confirmed pain is a brochure.
  2. Restate the problem in their words (verbatims from the call). This section wins or loses the deal.
  3. Design 3 options (Good/Better/Best): the middle one is the one you want them to pick; the small one makes it safe, the big one makes it look reasonable. Each option = outcome, scope bullets, what's excluded, price.
  4. Anchor value before price: quantify the cost of the problem or value of the outcome using THEIR numbers when given.
  5. Timeline & responsibilities: start date, milestones, what you need from them (the hidden deal-killer).
  6. Terms: validity date (7-14 days), payment schedule, the one guarantee you can honour. Flag anything for review-contract (legal) before sending.
  7. Close with a single next step: signature link / kickoff date / reply "option B" — one action, dated.
  8. Format: deliver as a clean markdown file ready for PDF/docx conversion.

Output format

## Proposal — {client} · valid until {date}
### 1. Where you are (your words)     ← verbatims
### 2. Where you want to be           ← outcome, quantified
### 3. Options
| | Good | Better ★ | Best |
|Outcome|...|...|...|
|Scope|...|...|...|
|Not included|...|...|...|
|Price|...|...|...|
### 4. Timeline & who does what
### 5. Terms (validity · payment · guarantee)
### 6. Next step: {one dated action}

Quality bar

  • Problem section uses the client's actual words from the call
  • Exactly 3 options; the target option is visibly the rational choice
  • Exclusions explicit — scope creep dies here
  • Price appears AFTER value, never in the first screen
  • Validity date + one single next step
  • Nothing promised that Legal or the product can't back

Read the full file on GitHub · 58 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 · 58 lines · 66 tokens per session scan A a8c235e962b9

Subscribe to this mod's changes

proposal-builder is a skill published in the GitHub repository alebgl77/claude-inc (14 stars, last pushed yesterday), licensed MIT. It adds 66 tokens to every session and 721 once invoked, about $0.0003 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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