anticipating-shadow-points vs POSTFACT — Resolve Ambiguous Side Effects Before Retry
anticipating-shadow-points is a plugin bundle for AI coding tools published by ulissesflores. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). POSTFACT — Resolve Ambiguous Side Effects Before Retry is an MCP server published by GSterlingPress. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-25. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  anticipating-shadow-points |  POSTFACT — Resolve Ambiguous Side Effects Before Retry |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | anticipating-shadow-points | POSTFACT — Resolve Ambiguous Side Effects Before Retry |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (postfact-api-production.up.railway.app/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/ulissesflores/anticipating-shadow-points | github.com/gsterlingpress/postfact-api |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Answered with HTTP 404 (46 h ago) |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
anticipating-shadow-points
Helps you ship complex engineering work without missing the obvious. Before any code is written, ASP runs an automated pre-mortem to surface failure modes that engineers (and LLMs) routinely miss on first pass — RLS policy gaps, replica lag during migrations, rate-limit issues in external APIs, deprecated callsites, monitoring blind spots, untested rollback paths. It then validates the plan with an independent agent, locks execution into a step-by-step contract with acceptance tests, and runs autonomously until done. Use before any non-trivial task: schema migrations, refactors across many files, deploys with external dependencies, RLS policy changes, or architecture decisions. Multilingual docs (English, Spanish, Portuguese, Italian, Hebrew). MIT licensed.
POSTFACT — Resolve Ambiguous Side Effects Before Retry
Resolve whether an uncertain side-effecting action completed before software retries it.
How to run each
anticipating-shadow-points As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install anticipating-shadow-points@claude-communityPOSTFACT — Resolve Ambiguous Side Effects Before Retry As a remote MCP server
claude mcp add --transport http postfact https://postfact-api-production.up.railway.app/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only POSTFACT — Resolve Ambiguous Side Effects Before Retry has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: anticipating-shadow-points · What it can do: POSTFACT — Resolve Ambiguous Side Effects Before Retry · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.