Epic: Feature Comparison - OpenCode vs ForgeCode

[ImBIOS]

Epic: OpenCode vs ForgeCode Feature Comparison

Track features that OpenCode has and their status in ForgeCode. Use this issue to identify gaps and prioritize development.

Docs: https://opencode.ai/docs | Repo: https://github.com/anomalyco/opencode

Legend

• = ForgeCode already has this feature
• = ForgeCode does NOT have this feature yet
• [~] = Partial implementation

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Core CLI Features

Feature	OpenCode	ForgeCode	Status	Notes
Interactive TUI	Yes	Yes	[x]
Non-interactive mode	Yes (opencode run)	Yes (forge -p)	[x]
Session resume	Yes (--continue)	Yes (--conversation-id)	[x]
Session fork	Yes (--fork)	Yes (conversation clone)	[x]	conversation clone <id> creates new conversation with new ID. Task tool session_id allows subagent resume.
Named sessions	Yes (--session)	Yes (conversation rename)	[x]	conversation rename <id> <name>
Session list	Yes	Yes (conversation list [--porcelain])	[x]
Model selection	Yes (--model)	Yes (via config)	[x]
Agent selection	Yes (--agent)	Yes (--agent)	[x]
Pipe input	Yes	Yes	[x]
Output formats	Yes	Partial (--porcelain, conversation dump --html)	[~]	--porcelain on most subcommands, JSON/HTML export via conversation dump. No stream-json event streaming.
Verbose/debug mode	Yes	Yes (--verbose)	[x]
Pure mode (no tools)	Yes (--pure)	No	[ ]	Read-only exploration without tools
Reasoning effort control	Yes	Yes (forge config set reasoning-effort)	[x]	Effort enum: none/minimal/low/medium/high/xhigh/max. max_tokens, exclude, enabled. crates/forge_config/src/reasoning.rs
Auto-update	Yes	Yes (forge update)	[x]

Session Management & Portability

Feature	OpenCode	ForgeCode	Status	Notes
Session export	Yes (opencode export)	Yes (conversation dump [--html])	[x]	JSON and HTML export
Session import	Yes (opencode import)	No	[ ]
Session stats	Yes (opencode stats)	Yes (conversation stats <id>)	[x]	Usage struct with cost field. crates/forge_main/src/info.rs
Session database	Yes (opencode db)	No	[ ]
Session persistence	Yes	Yes	[x]

Agent & Subagent Features

Feature	OpenCode	ForgeCode	Status	Notes
Subagents	Yes	Yes (task tool)	[x]	task tool with agent_id + session_id for resume.
Custom agents	Yes	Yes (.forge/agents/)	[x]
Agent management	Yes (opencode agent)	Yes (forge agent list, forge select agent)	[x]

Server & Protocol

Feature	OpenCode	ForgeCode	Status	Notes
Headless server mode	Yes (opencode serve)	No	[ ]
Web interface	Yes (opencode web)	No	[ ]
ACP (Agent Client Protocol)	Yes (opencode acp)	No	[ ]	Key protocol - See also #2968
MCP support	Yes	Yes	[x]	McpServerConfig::{Stdio, Http} transports. crates/forge_domain/src/mcp.rs
MCP server mode	Yes (opencode mcp)	Yes	[x]	crates/forge_infra/src/mcp_server.rs
MCP OAuth	No	Yes (mcp login/mcp logout)	[x]	OAuth device/code/PKCE, refresh, custom headers. ForgeCode advantage
Port configuration	Yes (--port)	No	[ ]

Tools & Integrations

Feature	OpenCode	ForgeCode	Status	Notes
Shell/command execution	Yes	Yes	[x]
File read/write	Yes	Yes	[x]
Custom tools	Yes	Yes (16 tools in ToolCatalog)	[x]	Read, Write, FsSearch, SemSearch, Remove, Patch, MultiPatch, Undo, Shell, Fetch, Followup, PlanCreate, SkillFetch, TodoWrite, TodoRead, Task. crates/forge_domain/src/tools/catalog.rs
Plugin system	Yes (opencode plugin)	Yes (skills + shell plugin)	[~]
GitHub integration	Yes (opencode github)	No	[ ]
PR checkout + run	Yes (opencode pr)	No	[ ]	Checkout PR and run agent on it
Provider management	Yes (opencode providers)	Yes (forge provider {login, logout, list})	[x]
Model listing	Yes (opencode models)	Yes (forge list models)	[x]
Web fetch	No	Yes (Fetch tool)	[x]	NetFetch with robots.txt respect, markdown conversion. ForgeCode advantage

Provider & Model Support

Feature	OpenCode	ForgeCode	Status	Notes
Multi-provider support	Yes (any provider)	Yes (43 providers)	[x]	Both are provider-agnostic
Custom provider endpoints	Yes	Yes	[x]
Local/offline models	Yes (Ollama, etc.)	Yes (ollama, lm_studio, llama_cpp, vllm, jan_ai)	[x]	crates/forge_repo/src/provider/provider.json
OpenRouter support	Yes	Yes	[x]
Auth methods	Yes	Yes (6 methods)	[x]	ApiKey, OAuthDevice, OAuthCode, GoogleAdc, AwsProfile, CodexDevice. crates/forge_domain/src/auth/auth_method.rs

Memory & Context

Feature	OpenCode	ForgeCode	Status	Notes
AGENTS.md / instructions	Yes	Yes (AGENTS.md)	[x]
Auto memory	No	Yes (TitleGenerationHandler)	[x]	Auto-generates conversation title. ForgeCode advantage
Context compaction	No	Yes (conversation compact <id>)	[x]	Compact + Compactor engine, CompactionStrategy, CompactionHandler hook. ForgeCode advantage
Checkpointing (file rewind)	No	Yes (fs_undo tool + forge_snaps)	[x]	ForgeCode advantage
Image input	No	Yes (InputModality::Image)	[x]	fs_read reads images when model supports it. ForgeCode advantage

UX Features

Feature	OpenCode	ForgeCode	Status	Notes
Desktop app	Yes (Tauri-based)	No	[ ]
Shell completion	Yes	Yes (full shell plugin)	[x]	shell-plugin/ with theme, plugin, keyboard, dispatcher, actions, context, completion, highlight, config, helpers, bindings.
Interactive fuzzy picker	Yes	Yes (forge select)	[x]	forge select {model, agent, provider, reasoning-effort, command, conversation, file}
Theme customization	Yes	Yes (forge.theme.zsh)	[x]
Markdown rendering	Yes	Yes	[x]
Doom-loop detection	No	Yes (DoomLoopDetector)	[x]	Detects [A,A,A,A] and [A,B,C][A,B,C][A,B,C] patterns. ForgeCode advantage
Hook system	No	Yes (internal EventHandle/Hook)	[x]	on_start, on_end, on_request, on_response, on_toolcall_start, on_toolcall_end. ForgeCode advantage

ForgeCode-Specific Features (not in OpenCode)

Feature	ForgeCode	Notes
Semantic code search	workspace query - embedding-based workspace search
Plan tool	PlanCreate for structured planning
Structured data pipeline	forge data - JSONL schema-constrained batches
AI commit messages	forge commit with --preview and --max-diff
NL to shell	forge suggest <nl>
Conversation lifecycle	conversation {list, new, dump, compact, retry, resume, show, info, stats, clone, rename, delete}
Config migration	forge config migrate for ~/forge to ~/.forge
Diagnostics	forge doctor, forge zsh doctor, forge logs
Status line	forge zsh rprompt shows model + conversation stats
Permissions policy	Policy enum with Allow/Deny/Confirm and All/Any/Not operators

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Summary

ForgeCode already has: ~40 features
ForgeCode is missing: ~7 features
Partial implementation: ~2 features

Top Priority Missing Features (by impact)

1. ACP (Agent Client Protocol) - Critical for IDE/editor integration ecosystem. See also [Feature]: Support ACP (Agent Client Protocol) #2968
2. Headless server mode (serve) - Important for integrations and CI/CD
3. Web interface (web) - Important for accessibility and remote usage
4. Session import - Important for portability and debugging
5. Session database tools (db) - Important for data management
6. PR checkout + run (pr) - High value for code review workflows
7. GitHub integration - Important for workflow automation
8. Pure/read-only mode - Useful for safe exploration
9. Desktop app - Important for UX
10. Port configuration - Important for self-hosting

ForgeCode Unique Advantages (not in OpenCode)

• MCP server mode + MCP OAuth (login/logout)
• Semantic code search (workspace indexing via embeddings)
• Context compaction (auto + manual)
• Doom-loop detection (automatic stuck-pattern breaker)
• Checkpointing (fs_undo + forge_snaps)
• Auto memory (title generation)
• Image input support
• Full shell plugin (ZSH theme, plugin, keyboard bindings, dispatcher, actions)
• Plan tool (PlanCreate)
• forge data (JSONL schema-constrained data processing pipeline)
• forge commit (AI-generated commit messages)
• forge suggest (NL to shell command)
• Conversation lifecycle (full CRUD + compact + retry + dump)
• Config migration (forge config migrate)
• Diagnostics (forge doctor, forge zsh doctor, forge logs)
• Theme customization (forge.theme.zsh)
• Cost tracking (Usage + conversation stats)
• Permissions policy system

Cross-references

• Related: Epic Epic: Feature Comparison - Claude Code vs ForgeCode #3500 (Claude Code comparison)
• Related: Epic Epic: Feature Comparison - Codex CLI vs ForgeCode #3501 (Codex CLI comparison)
• Related: Epic Epic: Feature Comparison - Cursor CLI vs ForgeCode #3503 (Cursor CLI comparison)
• Related: Issue [Feature]: Support ACP (Agent Client Protocol) #2968 (ACP support request)

Co-Authored-By: ForgeCode noreply@forgecode.dev