proposal-win-loss-review

proposal-win-loss-review is a skill for Claude Code, Codex from mardab96/b2b-lead-generation-claude-skills. It costs 41 tokens per session (737 once invoked), scanned A, original, MIT.

A review method for comparing successful and unsuccessful sales proposals to find recurring problems in targeting, qualification, messaging or handoff.

In plain words
What is it for?
Use it to review a real B2B sales period, diagnose proposal wins and losses, and decide whether to change targeting, scoring, follow-up, sales handoff or budget.
Why use it?
It helps explain why leads reach the proposal stage but do not buy, using evidence such as CRM records, sales notes, campaigns and conversion results.

Skill for Claude CodeCodex

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

Good fit Use it to review a real B2B sales period, diagnose proposal wins and losses, and decide whether to change targeting, scoring, follow-up, sales handoff or budget.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review
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 mardab96/b2b-lead-generation-claude-skills --skill proposal-win-loss-review
Clone the repo
git clone --depth 1 https://github.com/mardab96/b2b-lead-generation-claude-skills

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 proposal-win-loss-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review/github.svg)](https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review)
Your own site
<a href="https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review"><img src="https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review/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 proposal-win-loss-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review"><img src="https://agentmods.dev/badge/skills/mardab96/b2b-lead-generation-claude-skills/proposal-win-loss-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 737 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 $0.00041 $0.00737
Opus 5 $0.00020 $0.00368
Sonnet 5 $0.00008 $0.00147
Haiku 4.5 $0.00004 $0.00074

Measured 12d ago against content hash 5a861c2168fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

proposal-win-loss-review 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 12d 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.

proposal-win-loss-review/SKILL.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Proposal Win Loss Review

Use the shared quality bar in ../references/output-standard.md and ../references/skill-design-principles.md when those files are available.

Use this skill when

  • the user shares lead source, CRM stage, sales note, form, landing page or campaign data tied to proposal win loss review.
  • the next decision could change targeting, qualification, scoring, follow-up, sales handoff or budget.
  • lead volume looks acceptable but SQL, opportunity, closed-won, rejection or response-speed data raises doubt.

Do not use this skill for broad lead-generation advice without source, CRM, sales or qualification evidence. Use it when a real B2B lead quality decision is on the table.

Required input

  • business model, ICP, offer, ACV or deal value range, sales cycle and main conversion goal.
  • ad, landing page, lead form, CRM, call note, email or campaign data relevant to this diagnostic.
  • time window, traffic source, lead volume and downstream outcomes where available.
  • what decision the user is trying to make next: create, fix, scale, pause, brief sales or investigate.
  • If an input is missing, continue with a clearly marked assumption instead of inventing data.

Analysis workflow

  1. Collect won/lost proposal notes, source, segment, deal size, competitor, objections and close reason.
  2. Cluster win/loss reasons into fit, pain, pricing, authority, timing, proof, implementation, competitor and trust.
  3. Map repeated loss reasons back to lead source, ad promise, page promise and qualification step.
  4. Identify which upstream messages attract deals you can actually win.
  5. Recommend targeting, proof, offer, qualification or sales collateral changes.

Decision rules

  • If the data does not connect to revenue, pipeline, qualified leads or conversion quality, label the recommendation as a hypothesis.
  • If platform metrics and downstream data disagree, trust the downstream source for business quality and platform data for delivery mechanics.
  • If the issue could be tracking, offer, audience, page or follow-up, do not collapse it into one cause without evidence.
  • Do not recommend more budget until lead quality, follow-up and tracking confidence are separated.

Read the full file on GitHub · 65 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. 12d ago First seen · 65 lines · 41 tokens per session scan A 5a861c2168fd

Subscribe to this mod's changes

proposal-win-loss-review is a skill published in the GitHub repository mardab96/b2b-lead-generation-claude-skills (5 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 737 once invoked, about $0.0002 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 2026-08-31.

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