pi-context-mode-injection-filter

Pi extension that prevents context-mode's synthetic routing message from superseding the latest user request.

Packages

Package details

extension

Install pi-context-mode-injection-filter from npm and Pi will load the resources declared by the package manifest.

npm repohome report
$ pi install npm:pi-context-mode-injection-filter
Package
pi-context-mode-injection-filter
Version
0.1.1
Published
Jul 20, 2026
Downloads
146/mo · 146/wk
Author
eiei114
License
MIT
Types
extension
Size
12 KB
Dependencies
0 dependencies · 1 peer
Pi manifest JSON
{
  "extensions": [
    "./extensions/index.ts"
  ]
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-context-mode-injection-filter

CI Publish npm version npm downloads License: MIT Pi package Trusted Publishing

Keep context-mode's synthetic routing guidance from becoming the newest user request sent to a model.

What this is

pi-context-mode-injection-filter is a small Pi extension for projects that use context-mode. It intercepts the serialized provider payload immediately before each model request.

When context-mode appends its known synthetic routing message after the real prompt, this extension removes the routing anchor. If that synthetic message also contains active-memory content, the extension keeps the content and moves it before the conversation. The user's latest request remains last.

Features

  • Handles provider payloads that use either messages or input arrays.
  • Removes the exact context-mode routing anchor recursively.
  • Keeps non-empty active-memory content from the synthetic message.
  • Moves retained synthetic context before original conversation messages.
  • Adds no runtime dependencies and performs no file or network I/O.

Install

Global:

pi install npm:pi-context-mode-injection-filter

Project-local:

pi install npm:pi-context-mode-injection-filter -l

Try without installing:

pi -e npm:pi-context-mode-injection-filter

Quick start

Install this package alongside context-mode, then restart Pi or run /reload. No command or configuration is required. The extension runs on every provider request through Pi's before_provider_request event.

Compatibility

This is an intentionally narrow compatibility shim. It recognizes the exact context-mode routing anchor exported in lib/filter-provider-payload.ts. If context-mode changes that text, this package may need a matching update. Any message containing that full anchor is treated as synthetic, so do not use this package when preserving a verbatim copy of the anchor in model input is required.

Package contents

Path Purpose
extensions/index.ts Registers the provider-request hook.
lib/filter-provider-payload.ts Detects, strips, retains, and reorders payload messages.
docs/release.md Trusted Publishing setup and release flow.

Development

npm install
npm run ci
pi -e .

npm run ci runs TypeScript checks, tests, npm pack --dry-run, and the workflow token guard.

Release

Releases use npm Trusted Publishing through GitHub Actions. Long-lived npm tokens are not used. See docs/release.md.

Security

Pi packages execute with local user permissions. This extension only transforms the in-memory provider payload; it does not execute commands, read files, or send additional network requests. Review source before installation.

See SECURITY.md for vulnerability reporting.

Links

License

MIT