Add an optional `allowed_tools` parameter that restricts which tools are
available to the agent. When `Some(list)`, only tools whose name appears
in the list are retained; when `None`, all tools remain available
(backward compatible). This enables fine-grained capability control for
cron jobs, heartbeat tasks, and CLI invocations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
MCP tools were not visible to delegate subagents because parent_tools
was a static snapshot taken before MCP tool wiring. Switch to interior
mutability (parking_lot::RwLock) so MCP wrappers pushed after
DelegateTool construction are visible at sub-agent execution time.
Closes#3069
- Problem: The existing http_request tool returns raw HTML/JSON, which is nearly unusable for LLMs to extract
meaningful content from web pages.
- Why it matters: All mainstream AI agents (Claude Code, Gemini CLI, Aider) have dedicated web content extraction
tools. ZeroClaw lacks this capability, limiting its ability to research and gather information from the web.
- What changed: Added a new web_fetch tool that fetches web pages and converts HTML to clean plain text using
nanohtml2text. Includes domain allowlist/blocklist, SSRF protection, redirect following, and content-type aware
processing.
- What did not change (scope boundary): http_request tool is untouched. No shared code extracted between http_request
and web_fetch (DRY rule-of-three: only 2 callers). No changes to existing tool behavior or defaults.
Label Snapshot (required)
- Risk label: risk: medium
- Size label: size: M
- Scope labels: tool, config
- Module labels: tool: web_fetch
- If any auto-label is incorrect, note requested correction: N/A
Change Metadata
- Change type: feature
- Primary scope: tool
Linked Issue
- Closes #
- Related #
- Depends on #
- Supersedes #
Supersede Attribution (required when Supersedes # is used)
N/A
Validation Evidence (required)
cargo fmt --all -- --check # pass
cargo clippy --all-targets -- -D warnings # no new warnings (pre-existing warnings only)
cargo test --lib -- web_fetch # 26/26 passed
cargo test --lib -- tools::tests # 12/12 passed
cargo test --lib -- config::schema::tests # 134/134 passed
- Evidence provided: unit test results (26 new tests), manual end-to-end test with Ollama + qwen2.5:72b
- If any command is intentionally skipped, explain why: Full cargo clippy --all-targets has 43 pre-existing errors
unrelated to this PR (e.g. await_holding_lock, format! appended to String). Zero errors from web_fetch code.
Security Impact (required)
- New permissions/capabilities? Yes — new web_fetch tool can make outbound HTTP GET requests
- New external network calls? Yes — fetches web pages from allowed domains
- Secrets/tokens handling changed? No
- File system access scope changed? No
- If any Yes, describe risk and mitigation:
- Deny-by-default: enabled = false by default; tool is not registered unless explicitly enabled
- Domain filtering: allowed_domains (default ["*"] = all public hosts) + blocked_domains (takes priority).
Blocklist always wins over allowlist.
- SSRF protection: Blocks localhost, private IPs (RFC 1918), link-local, multicast, reserved ranges, IPv4-mapped
IPv6, .local TLD — identical coverage to http_request
- Rate limiting: can_act() + record_action() enforce autonomy level and rate limits
- Read-only mode: Blocked when autonomy is ReadOnly
- Response size cap: 500KB default truncation prevents context window exhaustion
- Proxy support: Honors [proxy] config via tool.web_fetch service key
Privacy and Data Hygiene (required)
- Data-hygiene status: pass
- Redaction/anonymization notes: No personal data in code, tests, or fixtures
- Neutral wording confirmation: All test identifiers use neutral project-scoped labels
Compatibility / Migration
- Backward compatible? Yes — new tool, no existing behavior changed
- Config/env changes? Yes — new [web_fetch] section in config.toml (all fields have defaults)
- Migration needed? No — #[serde(default)] on all fields; existing configs without [web_fetch] section work unchanged
i18n Follow-Through (required when docs or user-facing wording changes)
- i18n follow-through triggered? No — no docs or user-facing wording changes
Human Verification (required)
- Verified scenarios:
- End-to-end test: zeroclaw agent with Ollama qwen2.5:72b successfully called web_fetch to fetch
https://github.com/zeroclaw-labs/zeroclaw, returned clean plain text with project description, features, star count
- Tool registration: tool_count increased from 22 to 23 when enabled = true
- Config: enabled = false (default) → tool not registered; enabled = true → tool available
- Edge cases checked:
- Missing [web_fetch] section in existing config.toml → works (serde defaults)
- Blocklist priority over allowlist
- SSRF with localhost, private IPs, IPv6
- What was not verified:
- Proxy routing (no proxy configured in test environment)
- Very large page truncation with real-world content
Side Effects / Blast Radius (required)
- Affected subsystems/workflows: all_tools_with_runtime() signature gained one parameter (web_fetch_config); all 5
call sites updated
- Potential unintended effects: None — new tool only, existing tools unchanged
- Guardrails/monitoring for early detection: enabled = false default; tool_count in debug logs
Agent Collaboration Notes (recommended)
- Agent tools used: Claude Code (Opus 4.6)
- Workflow/plan summary: Plan mode → approval → implementation → validation
- Verification focus: Security (SSRF, domain filtering, rate limiting), config compatibility, tool registration
- Confirmation: naming + architecture boundaries followed (CLAUDE.md + CONTRIBUTING.md): Yes — trait implementation +
factory registration pattern, independent security helpers (DRY rule-of-three), deny-by-default config
Rollback Plan (required)
- Fast rollback command/path: git revert <commit>
- Feature flags or config toggles: [web_fetch] enabled = false (default) disables completely
- Observable failure symptoms: tool_count in debug logs drops by 1; LLM cannot call web_fetch
Risks and Mitigations
- Risk: SSRF bypass via DNS rebinding (attacker-controlled domain resolving to private IP)
- Mitigation: Pre-request host validation blocks known private/local patterns. Same defense level as existing
http_request tool. Full DNS-level protection would require async DNS resolution before connect, which is out of scope
for this PR.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
(cherry picked from commit 04597352cc)
Prepends [YYYY-MM-DD HH:MM:SS TZ] to each user message before it
reaches the model. This gives the agent accurate temporal context
on every turn, not just session start.
Previously DateTimeSection only injected the time once when the
system prompt was built. Long conversations or cron jobs had
stale timestamps. Now every message carries the real time.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Thinking/reasoning models (Kimi K2.5, GLM-4.7, DeepSeek-R1) return a
reasoning_content field in assistant messages containing tool calls.
ZeroClaw was silently dropping this field when constructing conversation
history, causing provider APIs to reject follow-up requests with 400
errors: "thinking is enabled but reasoning_content is missing in
assistant tool call message".
Add reasoning_content: Option<String> as an opaque pass-through at every
layer of the pipeline: ChatResponse, ConversationMessage, NativeMessage
structs, parse/convert/build functions, and dispatcher. The field is
skip_serializing_if = None so it is invisible for non-thinking models.
Closes#1327
Add a lightweight TokenUsage struct to providers::traits with
input_tokens and output_tokens fields. Add usage: Option<TokenUsage>
to ChatResponse and update all construction sites across providers
and agent modules with usage: None.
This is the first step toward capturing token usage data from LLM
API responses. Currently all sites set usage: None — subsequent
commits will parse actual usage from each provider's response format.
- Remove duplicate chat method in ReliableProvider impl (E0201)
The second chat fn (lines 662-769) was an exact duplicate of the
first (lines 540-647) in the same impl block.
- Gate PostgresMemory usage in memory CLI behind memory-postgres feature (E0433)
super::PostgresMemory is only exported when the feature is enabled;
the Postgres match arm now compiles to an explicit bail when the
feature is off.
- Replace utures::future::join_all with utures_util::future::join_all (E0433)
The crate depends on utures-util, not utures. Fixed in both
agent.rs and loop_.rs.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
When parallel_tools is enabled, both code branches in execute_tools()
ran the same sequential for loop. The parallel path was a no-op.
Use futures::future::join_all to execute tool calls concurrently when
parallel_tools is true. The futures crate is already a dependency.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Replace bare .unwrap() calls with descriptive .expect() messages in
src/agent/agent.rs and src/tools/shell.rs test modules. Adds meaningful
failure context for memory creation, agent builder, and tool execution
assertions. Addresses audit finding on test assertion quality (§5.2).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Classify incoming user messages by keyword/pattern and route to the
appropriate model hint automatically, feeding into the existing
RouterProvider. Disabled by default; opt-in via [query_classification]
config section.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Three fixes for conversation quality issues:
1. loop_.rs and channels now read max_tool_iterations from AgentConfig
instead of using a hardcoded constant of 10, making it configurable.
2. Memory recall now filters entries below a configurable
min_relevance_score threshold (default 0.4), preventing unrelated
memories from bleeding into conversation context.
3. Default hybrid search weights rebalanced from 70/30 vector/keyword
to 40/60, reducing cross-topic semantic bleed.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
fix(misc): complete parking_lot::Mutex migration (fixes#505)
- DiscordChannel: store actual channel_id in ChannelMessage.channel
instead of hardcoded "discord" string
- channels/mod.rs: use msg.channel instead of msg.sender for replies
- Migrate all std::sync::Mutex to parking_lot::Mutex:
* src/security/audit.rs
* src/memory/sqlite.rs
* src/memory/response_cache.rs
* src/memory/lucid.rs
* src/channels/email_channel.rs
* src/gateway/mod.rs
* src/observability/traits.rs
* src/providers/reliable.rs
* src/providers/router.rs
* src/agent/agent.rs
- Remove all .lock().unwrap() and .map_err(PoisonError) patterns
since parking_lot::Mutex never poisons
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat(memory): add session_id isolation to Memory trait
Add optional session_id parameter to store(), recall(), and list()
methods across the Memory trait and all four backends (sqlite, markdown,
lucid, none). This enables per-session memory isolation so different
agent sessions cannot cross-read each other's stored memories.
Changes:
- traits.rs: Add session_id: Option<&str> to store/recall/list
- sqlite.rs: Schema migration (ALTER TABLE ADD COLUMN session_id),
index, persist/filter by session_id in all query paths
- markdown.rs, lucid.rs, none.rs: Updated signatures
- All callers pass None for backward compatibility
- 5 new tests: session-filtered recall, cross-session isolation,
session-filtered list, no-filter returns all, migration idempotency
Closes#518
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* fix(channels): fix discord _channel_id typo and lark missing reply_to
Pre-existing compilation errors on main after reply_to was added to
ChannelMessage: discord.rs used _channel_id (underscore prefix) but
referenced channel_id, and lark.rs was missing the reply_to field.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
