fullsend agents

First-class agents for the fullsend platform. These agents automate the software development lifecycle on GitHub — from issue triage through code implementation, review, fix, prioritization, and retrospective analysis.

Agents

Agent	Description	Trigger
Triage	Assesses issue sufficiency, searches for duplicates, applies control labels	New issues, /fs-triage
Code	Implements fixes and features following repo conventions	ready-to-code label, /fs-code
Review	Dispatches parallel sub-agents across six review dimensions	PR events, /fs-review
Fix	Implements targeted fixes from review feedback	Review comments, /fs-fix
Prioritize	Scores issues using the RICE framework	Schedule, /fs-prioritize
Retro	Analyzes completed workflows and proposes improvements	PR close, /fs-retro

See docs/ for detailed documentation on each agent.

Repository structure

agents/      Agent system prompts (one per agent)
docs/        User-facing documentation
harness/     Harness configurations (sandbox image, timeout, scripts, plugins)
policies/    Sandbox security policies (filesystem, network, binary restrictions)
env/         Per-agent environment variables
schemas/     JSON Schema for validating agent structured output
scripts/     Pre-scripts (input validation) and post-scripts (GitHub mutations)
skills/      Reusable skill definitions loaded by agents at runtime
plugins/     Sandbox plugins (e.g. gopls LSP for the code agent)
common/      Shared configuration (GCP Vertex AI auth)

Architecture

Agents run inside sandboxed containers with strict filesystem, network, and binary restrictions. Each agent follows a three-phase pipeline:

1. Pre-script — runs on the GitHub Actions runner to validate inputs and prepare the environment
2. Sandbox — runs the agent with restricted permissions; the agent writes code and produces structured JSON output
3. Post-script — runs on the runner with elevated permissions to perform GitHub mutations (pushing branches, creating PRs, posting comments, applying labels)

The agent never has direct write access to the repository. All mutations flow through post-scripts.

Testing

Run all agent shell script test suites from the repo root:

make test

This is an alias for make script-test, which runs the scripts/*-test.sh suites. CI also runs make check-bundle and executes make script-test twice (source and bundled modes) via .github/workflows/script-test.yml.

Script bundling

Harness fetches each runner script as an isolated blob, so post-scripts cannot source files from scripts/lib/ at runtime. Scripts that use shared libraries are maintained as source files and bundled before commit:

Kind	Path	Edit?
Library	scripts/lib/*.lib.sh	Yes — functions only, no side effects
Source	scripts/*.src.sh	Yes — editable script with source calls
Bundled	scripts/*.sh (from .src.sh)	No — generated; referenced by harness

Bundled scripts are self-contained — child harnesses that override post_script must provide their own self-contained script or bundling setup. A custom post-script that tries to source a base lib at runtime will fail because the harness only fetches the single script blob.

After editing a .src.sh or .lib.sh file:

make script-build      # regenerate bundled .sh files
make check-bundle      # verify committed bundles are current

Commit source and bundled files together. Test bundled scripts locally with:

make script-test SCRIPT_TEST_TARGET=bundled

Library tests source .lib.sh directly. Script tests honor SCRIPT_TEST_TARGET (source by default, bundled in CI's second pass).

To add a new post-script, create scripts/my-agent.src.sh with source calls to libs under scripts/lib/, add it to BUNDLE_SRCS in the Makefile, run make script-build, and commit both .src.sh and .sh together. To add a new shared library, create scripts/lib/my-thing.lib.sh with an include guard ([[ -n "${MY_THING_SH_LOADED:-}" ]] && return 0), then source it from the relevant .src.sh and rebuild.

Versioning

This repository is versioned in lockstep with fullsend. Tags are pushed by fullsend's release workflow after a successful release — they are not created here directly. The v0 floating tag always points to the latest stable (non-prerelease) version.

Workflows

File	Managed by	Purpose
fullsend.yaml	fullsend (centrally managed)	Routes GitHub events to agent dispatch workflows
release.yml	This repo	Creates GitHub Releases and moves the v0 tag on version tag push
script-test.yml	This repo	Runs agent shell script tests on PRs and main branch pushes