chore: release v0.2.0

[nikomatsakis]

🤖 New release

• symposium: 0.1.0 -> 0.2.0 (⚠ API breaking changes)

⚠ symposium breaking changes

--- failure constructible_struct_adds_field: externally-constructible struct adds field ---

Description:
A pub struct constructible with a struct literal has a new pub field. Existing struct literals must be updated to include the new field.
        ref: https://doc.rust-lang.org/reference/expressions/struct-expr.html
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/constructible_struct_adds_field.ron

Failed in:
  field ValidationResult.warning in /tmp/.tmpoBPblt/symposium/src/plugins.rs:586
  field ValidationResult.children in /tmp/.tmpoBPblt/symposium/src/plugins.rs:588
  field Installation.summary in /tmp/.tmpoBPblt/symposium/src/plugins.rs:118
  field Plugin.crates in /tmp/.tmpoBPblt/symposium/src/plugins.rs:77
  field Plugin.mcp_servers in /tmp/.tmpoBPblt/symposium/src/plugins.rs:83
  field Hook.format in /tmp/.tmpoBPblt/symposium/src/plugins.rs:130
  field Config.auto_sync in /tmp/.tmpoBPblt/symposium/src/config.rs:32
  field Config.hook_scope in /tmp/.tmpoBPblt/symposium/src/config.rs:40
  field Config.agents in /tmp/.tmpoBPblt/symposium/src/config.rs:44

--- failure copy_impl_added: type now implements Copy ---

Description:
A public type now implements Copy, causing non-move closures to capture it by reference instead of moving it.
        ref: https://github.com/rust-lang/rust/issues/100905
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/copy_impl_added.ron

Failed in:
  symposium::hook::HookEvent in /tmp/.tmpoBPblt/symposium/src/hook_schema.rs:59
  symposium::hook_schema::HookEvent in /tmp/.tmpoBPblt/symposium/src/hook_schema.rs:59

--- failure enum_missing: pub enum removed or renamed ---

Description:
A publicly-visible enum cannot be imported by its prior path. A `pub use` may have been removed, or the enum itself may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/enum_missing.ron

Failed in:
  enum symposium::dispatch::SharedCommand, previously in file /tmp/.tmpTivQ9K/symposium/src/dispatch.rs:19
  enum symposium::dispatch::DispatchResult, previously in file /tmp/.tmpTivQ9K/symposium/src/dispatch.rs:39
  enum symposium::hook::HookSubPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:36
  enum symposium::hook_schema::HookSubPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:36
  enum symposium::dispatch::RenderMode, previously in file /tmp/.tmpTivQ9K/symposium/src/start.rs:7
  enum symposium::start::RenderMode, previously in file /tmp/.tmpTivQ9K/symposium/src/start.rs:7

--- failure enum_variant_added: enum variant added on exhaustive enum ---

Description:
A publicly-visible enum without #[non_exhaustive] has a new variant.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#enum-variant-new
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/enum_variant_added.ron

Failed in:
  variant HookEvent:SessionStart in /tmp/.tmpoBPblt/symposium/src/hook_schema.rs:74
  variant HookEvent:SessionStart in /tmp/.tmpoBPblt/symposium/src/hook_schema.rs:74

--- failure function_missing: pub fn removed or renamed ---

Description:
A publicly-visible function cannot be imported by its prior path. A `pub use` may have been removed, or the function itself may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/function_missing.ron

Failed in:
  function symposium::mcp::serve, previously in file /tmp/.tmpTivQ9K/symposium/src/mcp.rs:21
  function symposium::hook::extract_crate_mentions, previously in file /tmp/.tmpTivQ9K/symposium/src/hook.rs:273
  function symposium::start::render, previously in file /tmp/.tmpTivQ9K/symposium/src/start.rs:14
  function symposium::dispatch::dispatch, previously in file /tmp/.tmpTivQ9K/symposium/src/dispatch.rs:47

--- failure function_parameter_count_changed: pub fn parameter count changed ---

Description:
A publicly-visible function now takes a different number of parameters.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#fn-change-arity
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/function_parameter_count_changed.ron

Failed in:
  symposium::hook::run now takes 3 parameters instead of 2, in /tmp/.tmpoBPblt/symposium/src/hook.rs:60

--- failure module_missing: pub module removed or renamed ---

Description:
A publicly-visible module cannot be imported by its prior path. A `pub use` may have been removed, or the module may have been renamed, removed, or made non-public.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/module_missing.ron

Failed in:
  mod symposium::start, previously in file /tmp/.tmpTivQ9K/symposium/src/start.rs:1
  mod symposium::dispatch, previously in file /tmp/.tmpTivQ9K/symposium/src/dispatch.rs:1
  mod symposium::mcp, previously in file /tmp/.tmpTivQ9K/symposium/src/mcp.rs:1

--- failure struct_missing: pub struct removed or renamed ---

Description:
A publicly-visible struct cannot be imported by its prior path. A `pub use` may have been removed, or the struct itself may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/struct_missing.ron

Failed in:
  struct symposium::config::HooksConfig, previously in file /tmp/.tmpTivQ9K/symposium/src/config.rs:30
  struct symposium::hook::PreToolUsePayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:69
  struct symposium::hook_schema::PreToolUsePayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:69
  struct symposium::hook::HookPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:26
  struct symposium::hook_schema::HookPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:26
  struct symposium::hook::PostToolUsePayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:74
  struct symposium::hook_schema::PostToolUsePayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:74
  struct symposium::hook::HookOutput, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:125
  struct symposium::hook_schema::HookOutput, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:125
  struct symposium::mcp::McpArgs, previously in file /tmp/.tmpTivQ9K/symposium/src/mcp.rs:16
  struct symposium::hook::UserPromptSubmitPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:85
  struct symposium::hook_schema::UserPromptSubmitPayload, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:85
  struct symposium::hook::HookSpecificOutput, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:132
  struct symposium::hook_schema::HookSpecificOutput, previously in file /tmp/.tmpTivQ9K/symposium/src/hook_schema.rs:132

--- failure struct_pub_field_missing: pub struct's pub field removed or renamed ---

Description:
A publicly-visible struct has at least one public field that is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/struct_pub_field_missing.ron

Failed in:
  field cache_dir of struct Config, previously in file /tmp/.tmpTivQ9K/symposium/src/config.rs:13
  field hooks of struct Config, previously in file /tmp/.tmpTivQ9K/symposium/src/config.rs:25
  field activation of struct SkillGroup, previously in file /tmp/.tmpTivQ9K/symposium/src/plugins.rs:32

Changelog

0.2.0 - 2026-04-21

Added

• add Gemini BeforeAgent hook and cross-agent event mapping
• filter to direct dependencies only
• crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• directory-based plugins with SYMPOSIUM.toml and plugin source discovery
• dual-mode agent integration test infrastructure
• add hook-scope config (global vs project)
• wire plugin MCP servers through sync_agent
• add MCP server registration and unregistration for all agents
• add McpServerEntry type and mcp_servers field to plugin manifest
• add plugin format routing via HookFormat
• add support for Codex CLI, Kiro, OpenCode, and Goose agents
• add --remove-agent flag to init and sync
• support multiple agents via [[agent]] config entries
• support project-level plugin sources and self-contained mode
• add SessionStart hook with plugin session-start-context
• reframe install, about page
• implement cargo-agents CLI with init, sync, and hook flows

Fixed

• fixup! WIP--merge into 1: refactor: restructure documentation navigation and consolidate pages
• fixup! docs: expand install guide and agent MCP server documentation
• fixup! fix: auto-sync cwd resolution falls back to process cwd
• fixup! feat: crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• fixup! feat: directory-based plugins with SYMPOSIUM.toml and plugin source discovery
• fixup! feat: directory-based plugins with SYMPOSIUM.toml and plugin source discovery
• fixup! feat: directory-based plugins with SYMPOSIUM.toml and plugin source discovery
• fixup! feat: crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• fixup! feat: crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• fixup! feat: crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• auto-sync cwd resolution falls back to process cwd
• use XDG_STATE_HOME for logs directory
• Kiro agent config needs tools and resources fields
• handle events without agent-specific handlers gracefully
• make --add-agent additive and fix project agent resolution
• pre-select existing agents in prompt and remove hooks on unconfig
• split Copilot hook registration for global vs project paths
• use Symposium.home_dir for global hook registration instead of dirs::home_dir

Other

• update the anem of the book
• fmt
• Support cargo subcommand convention for 'cargo agents'
• fmt
• Keep 'symposium' as the agent/server identity name
• Rename binary from symposium to cargo-agents
• hide agent-facing CLI commands and rename crate to crate-info
• fixup warning
• cargo fmt
• WIP--merge into 1: refactor: restructure documentation navigation and consolidate pages
• WIP--merge into 6: feat: crate predicate system with wildcard, plugin-level filtering, and MCP server filtering
• WIP--merge into 5: feat: directory-based plugins with SYMPOSIUM.toml and plugin source discovery
• WIP--merge into 1: refactor: restructure documentation navigation and consolidate pages
• remove session_start_context from plugins
• remove activation field from skills
• expand install guide and agent MCP server documentation
• restructure documentation navigation and consolidate pages
• pacify the merciless cargo fmt
• simplify configuration: remove per-project config
• Simplify CLI: remove start command, crate --list, and skills output
• Remove built-in MCP server
• Remove start command from MCP server, inline dispatch into CLI
• Merge pull request Add MCP server registration for all supported agents #175 from nikomatsakis/azure-range
• pacify the merciless cargo fmt
• Add test for non-object container recovery in JSON MCP registration
• Fix Goose stale-entry updates and add YAML quoting tests
• Clarify Copilot MCP registration format in design doc
• Strengthen Codex stale-entry update test
• Replace deprecated serde_yaml with serde_yaml_ng
• Document Goose stale-entry limitation
• Quote command and args in Goose YAML snippet
• Include env/headers in server_to_json when non-empty
• Harden register_json_mcp_servers against non-object container
• Panic on unknown McpServer variants instead of silent fallback
• Remove builtin MCP server variant
• Add MCP server documentation and use type = "builtin" for builtin entries
• add MCP server registration docs to all agent detail files
• move symposium binary resolution to Symposium struct
• convert agents module to directory structure
• Remove skill nudging and activation tracking
• pacify the merciless fmt
• minor fixes — Output::is_quiet, non-interactive init, docs
• update test harness and integration tests for new hook API
• replace generic hook dispatch with agent-owned wire formats and plugin format routing
• introduce canonical symposium hook types
• Fmt and add CI check
• rename agent detail docs, add disclaimers and primary source links
• rename reference/ to agent-details/ and add cross-agent comparison
• document session-start-context in plugin definition reference
• verify hook removal when switching agents
• revert CLI naming from cargo-agents back to symposium
• verify self-contained excludes user skills from sync
• use fixtures for project plugin source tests
• add integration tests for project plugin sources and self-contained mode
• add command flow docs, agent details, and misc reference updates
• the heck
• rewrite getting-started guide for cargo-agents
• Review comments
• Allow calling hooks with other agents. Fix claude output.
• Add copilot
• Add Gemini BeforeTool hook
• Typo in PR template
• Add adapter skeleton for hooks
• Rewiew nits. Add merge docs and cfg out tests using sh
• Forward hooks output

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