campaign-postmortem

campaign-postmortem is a skill for Claude Code, Codex from zapier/gtm-cheat-codes. It costs 27 tokens per session (369 once invoked), scanned A, original, MIT.

A campaign retrospective is a structured review of a marketing campaign, covering its goals, actions, results, team feedback, and follow-up work.

In plain words
What is it for?
It helps document the campaign timeline, compare goals with actual results, identify causes, and record what to repeat, change, or stop with owners and dates when available.
Why use it?
It keeps facts, interpretations, and open questions separate, so the team can understand what happened instead of relying on scattered notes or memory.

Skill for Claude CodeCodex

Part of the gtm-cheat-codes plugin — 21 skills 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/zapier/gtm-cheat-codes/campaign-postmortem
Any agent
npx skills add zapier/gtm-cheat-codes --skill campaign-postmortem
Clone the repo
git clone --depth 1 https://github.com/zapier/gtm-cheat-codes

Made for: Claude Code, Codex.

Or install gtm-cheat-codes, the plugin that ships this one along with the rest of its 21 skills.

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 campaign-postmortem

README.md
[![agentmods](https://agentmods.dev/badge/skills/zapier/gtm-cheat-codes/campaign-postmortem.svg)](https://agentmods.dev/skills/zapier/gtm-cheat-codes/campaign-postmortem)
Your own site
<a href="https://agentmods.dev/skills/zapier/gtm-cheat-codes/campaign-postmortem"><img src="https://agentmods.dev/badge/skills/zapier/gtm-cheat-codes/campaign-postmortem.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 369 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 $0.00027 $0.00369
Opus 5 $0.00014 $0.00185
Sonnet 5 $0.00005 $0.00074
Haiku 4.5 $0.00003 $0.00037

Measured 4d ago against content hash 1f962515f7da, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

campaign-postmortem 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/marketing/campaign-postmortem/SKILL.md · 47 lines

What it actually says

Campaign Postmortem

Use When

A marketing team needs to understand what happened in a campaign and turn the learning into better next-cycle decisions.

Workflow

  1. Confirm campaign name, date range, goals, channels, and audience.
  2. Gather approved source material: brief, launch plan, project notes, performance data, meeting notes, and team feedback.
  3. Build a timeline of major decisions, launch events, results, and follow-up actions.
  4. Compare goals to actual results with source references.
  5. Separate observations from interpretations.
  6. Identify what worked, what did not work, root causes, and open questions.
  7. Recommend what to repeat, change, or stop.
  8. Add an action register with owners, dates, and unresolved decisions when available.

Zapier MCP And SDK Role

  • Use Zapier MCP to gather approved campaign docs, conversations, dashboards, CRM context, meeting notes, and tracker state.
  • Use Zapier SDK for retro intake, scheduled reminders, reviewer routing, action logging, and follow-up tracking.
  • Keep metrics, claims, and broad sharing review-gated.

Output Format

  • Executive summary
  • Source list
  • Campaign timeline
  • Goal vs. actuals
  • What worked
  • What did not work
  • Root causes and caveats
  • Repeat / change / stop
  • Action register

Guardrails

  • Never invent metrics, attribution, causes, or owner commitments.
  • Label missing data and conflicting evidence.
  • Keep the retro focused on systems, decisions, and process, not personal blame.
  • Require human review before sharing broadly or updating source-of-truth records.
Files

What ships with it

5 files 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. 4d ago First seen · 47 lines · 27 tokens per session scan A 1f962515f7da

Subscribe to this mod's changes

campaign-postmortem is a skill published in the GitHub repository zapier/gtm-cheat-codes (334 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 369 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.

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