Introduce parseTurnBoundaries() which identifies each Turn start index
in the session history. A Turn is a complete "user input → LLM iterations
→ final response" cycle (as defined in the agent refactor design #1316).
findSafeBoundary now uses Turn boundaries instead of raw role-scanning,
making the intent explicit: "find the nearest Turn boundary."
forceCompression drops the oldest half of Turns (not arbitrary messages),
which is simpler and more intuitive. The Turn-based approach naturally
prevents splitting tool-call sequences since each Turn is atomic.
Add tests that reflect actual session data shape: history starts with
user messages (no system prompt), includes chained tool-call sequences,
reasoning content, and media items. Exercises the proactive budget check
path with BuildMessages-style assembled messages.
Add context_window to config.example.json, the web configuration page
(form model, input field, save handler), and i18n strings (en/zh).
The field is optional — leaving it empty falls back to the 4x max_tokens
heuristic.
estimateMessageTokens now counts ReasoningContent (extended thinking /
chain-of-thought) which can be substantial and is persisted in session
history. Media items get a fixed per-item overhead (256 tokens) since
actual cost depends on provider-specific image tokenization.
Session history (GetHistory) contains only user/assistant/tool messages.
The system prompt is built dynamically by BuildMessages and is never
stored in session. The previous code incorrectly treated history[0] as
a system prompt, skipping the first user message and appending a
compression note to it.
Fix: operate on the full history slice, and record the compression
note in the session summary (which BuildMessages already injects into
the system prompt) rather than modifying any history message.
Separate context_window from max_tokens — they serve different purposes
(input capacity vs output generation limit). The previous conflation caused
premature summarization or missed compression triggers.
Changes:
- Add context_window field to AgentDefaults config (default: 4x max_tokens)
- Extract boundary-safe truncation helpers (isSafeBoundary, findSafeBoundary)
into context_budget.go — pure functions with no AgentLoop dependency
- forceCompression: align split to safe boundary so tool-call sequences
(assistant+ToolCalls → tool results) are never torn apart
- summarizeSession: use findSafeBoundary instead of hardcoded keep-last-4
- estimateTokens: count ToolCalls arguments and ToolCallID metadata,
not just Content — fixes systematic undercounting in tool-heavy sessions
- Add proactive context budget check before LLM call in runAgentLoop,
preventing 400 context-length errors instead of reacting to them
- Add estimateToolDefsTokens for tool definition token cost
Closes#556, closes#665
Ref #1439
- centralize Pico chat connection and session state in a shared store
- move chat lifecycle control out of usePicoChat
- hydrate and restore the active session across the app
- add a dedicated /api/gateway/logs endpoint for incremental log polling
- keep /api/gateway/status focused on runtime and health data only
- update frontend log fetching to use the new API and add backend tests covering the status/logs separation and cleared-log behavior
* fix: safety guard incorrectly blocks commands with URLs
The absolutePathPattern regex was matching URL path components like
//github.com as file system paths, causing commands containing URLs
to be incorrectly blocked by the workspace restriction safety guard.
For example, 'agent-browser open https://github.com' would be blocked
because //github.com was treated as an absolute file path outside
the working directory.
The fix adds a check to skip any path match that starts with '//',
as these are URL path components, not file system paths.
Fixes#1203
* fix: handle file:// URIs correctly in safety guard
The previous fix skipped all paths starting with '//', which incorrectly
also skipped file:// URIs that could escape the workspace sandbox.
Changes:
- Only skip '//' paths when preceded by web URL schemes (http:, https:, ftp:, etc.)
- file:// URIs are now properly checked against workspace boundaries
- Added TestShellTool_FileURISandboxing to verify the fix
Fixes security issue raised by @alexhoshina in PR #1254
* style: fix gofumpt formatting
* fix(safety-guard): use exact match position to prevent URL exemption bypass
Using strings.Index(cmd, raw) always returned the first occurrence of the
matched substring, allowing a bypass where the same //path appeared both
inside a URL and as a standalone shell path (e.g. echo https://etc/passwd
&& cat //etc/passwd would skip the second match).
Switch to FindAllStringIndex so each match is evaluated at its actual
position in the command string.
Adds TestShellTool_URLBypassPrevented to cover the exploit scenario.
- track boot and config default models in gateway status/events
- preserve running, starting, and restarting states during health checks
- add safer gateway restart handling with stronger backend test coverage
- expose restart-required UI and refresh model state after default model update
* make gateway aware of config.json change
* fix according to code review
* fix lint
* fix review comment
* fix for review
* refactor to fix review
* fix for review
* fix for review
* add model command to set default model
* fix for ci
* fix test for model
* fix active agent not recognized
* implement test for model command
* fix local-model can not set as default issue
* fix review comment
* fix for comment
* feat: add anthropic-messages protocol support
Add native Anthropic Messages API format support to enable
compatibility with custom endpoints that only support Anthropic's
native message format (not OpenAI-compatible format).
Changes:
- Add new pkg/providers/anthropic_messages package with HTTP-based provider
- Implement Anthropic Messages API request/response format conversion
- Add anthropic-messages protocol support in factory_provider.go
- Include comprehensive unit tests (64.2% coverage)
Features:
- Support for system, user, assistant, and tool messages
- Support for tool calls (tool_use blocks)
- Proper header handling (x-api-key, anthropic-version)
- Configurable max_tokens and temperature
- Automatic base URL normalization
Configuration example:
model: "anthropic-messages/claude-opus-4-6"
api_base: "https://api.anthropic.com"
api_key: "sk-..."
Tested with actual API endpoint, verified compatibility
with Anthropic Messages API specification.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* docs: add anthropic-messages protocol examples to README and config
Add configuration examples and documentation for the new
anthropic-messages protocol:
- config.example.json: Add claude-opus-4.6 example with anthropic-messages
- README.md: Add "Anthropic Messages API (native format)" section
- README.zh.md: Add Chinese version of the documentation
This helps users understand when to use anthropic-messages vs
anthropic protocol and fixes issue #269.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* fix: format code with gofmt -s
- Align constant definitions in provider.go
- Align struct fields in test cases
- Fix gofmt formatting issues reported in review
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* fix: address linter errors
- Fix HTTP header canonical form: "x-api-key" → "X-API-Key"
- Fix HTTP header canonical form: "anthropic-version" → "Anthropic-Version"
- Format imports with gci (standard, default, localmodule order)
- Format code with golines (max line length 120)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* fix: resolve golangci-lint errors in anthropic-messages provider
- add nolint comment for canonicalheader rule on X-API-Key header (Anthropic API requires exact casing)
- fix golines formatting issues in provider_test.go (split long lines under 120 chars)
- fix long comment line in factory_provider.go (split into two lines)
Resolves CI linter failures for the anthropic-messages protocol implementation.
* fix(providers): address review comments in anthropic-messages provider
- fix normalizeBaseURL edge case that incorrectly appends /v1 to URLs already containing /v1 path (e.g., https://api.example.com/v1/proxy)
- remove dead code for apiBase empty check as normalizeBaseURL() always provides a default value
- update test to use proper constructor instead of direct struct initialization
- add detailed comments explaining the URL normalization logic
Resolves review comments on PR #1284
* fix(providers): remove hardcoded max_tokens in anthropic-messages provider
- remove hardcoded max_tokens value (4096) from buildRequestBody
- read max_tokens directly from options parameter
- add error handling when max_tokens is missing from options
- update test cases to include max_tokens in options
This fix ensures the provider respects the config default value (32768)
or system fallback (8192) instead of always using the hardcoded 4096.
* fix(providers): improve error handling and add edge case tests
- fix ToolCalls nil vs empty slice issue to ensure consistent JSON serialization
- add detailed HTTP error handling for common status codes (401, 429, 400, 404, 500, 503)
- add edge case tests for buildRequestBody and parseResponseBody
- clarify anthropic vs anthropic-messages protocol differences in docs
---------
Co-authored-by: Claude <noreply@anthropic.com>
* fix(line): limit webhook request body size to prevent DoS
Add io.LimitReader with 1 MB cap on the LINE webhook handler to prevent
unauthenticated memory exhaustion via oversized POST requests.
Follows the same pattern used in the WeCom channel (io.LimitReader).
Requests exceeding the limit are rejected with 413 Request Entity Too Large.
Fixes#1407
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* refactor(line): hoist body size const, add boundary tests
- Move maxWebhookBodySize to package-level const
- Add TestWebhookAcceptsMaxBodySize (exact limit → 403, not 413)
- Add TestWebhookRejectsOversizedBodyBeforeSignatureCheck
- Use const in test instead of magic number
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Go's built-in mime.TypeByExtension returns 'image/svg' for .svg files,
but the correct MIME type per RFC 6838 is 'image/svg+xml'. This fix
registers the correct MIME type when setting up the static file server.
Fixes#1410
- Disable goreleaser GitHub release for nightly (Docker still pushed)
- Use GORELEASER_CURRENT_TAG with local-only tag for version/validation
- Force-update single `nightly` git tag instead of creating per-day tags
- Docker tags use only `nightly`/`nightly-launcher`, no per-day versions
- Set --latest=false on nightly release to avoid occupying latest
- Simplify workflow from 3 jobs to 1 job, remove all cleanup steps
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
* docs: swap header logo to webp, move meme logo to bottom
Replace header logo with assets/logo.webp across all 6 README
language variants and move the original meme logo (logo.jpg)
to the bottom of each file.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* docs: update GPT model names to gpt-5.4 and refine provider descriptions
Update all 6 language README variants:
- Correct GPT model references from gpt-5.2/gpt4 to gpt-5.4
- Refine provider descriptions in API Key comparison tables
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* chore: update default model to gpt-5.4, codex to gpt-5.3-codex
Update OpenAI default model references from gpt-5.2 to gpt-5.4
across source code, config examples, tests, and docs. Set Codex
default model to gpt-5.3-codex.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
TOOLS.md was intentionally removed in 21d60f6 and #771, as tools are
now provided to the LLM via JSON schema through ToProviderDefs().
These references were missed during that cleanup.
Suggested by @yinwm in #1355.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
xiaoen