Unblocked Context Search

Unified retrieval for engineering context. Calls context_research with a natural-language query to search across code, PRs, docs, message threads, and issues — whether you need a focused single-entity lookup, a filtered data query, or a multi-source research synthesis. One tool replaces the need to choose between semantic search, structured retrieval, and deep investigation.

How to Invoke

Do not infer CLI availability from the MCP tool list — fine-grained tools are CLI-only, so the MCP surface tells you nothing. Run command -v unblocked once per session and cache the result. See unblocked-tools-guide for full routing rules.

CLI (preferred):

unblocked context-research --query "<your query>" [--instruction "<instruction>"] [--effort low|medium|high]

MCP fallback (only if CLI is confirmed unavailable): call context_research with equivalent arguments (query, instruction, effort). context_research is exposed on MCP in virtually all environments.

If neither is available: stop and tell the user Unblocked is not configured in this environment (see unblocked-tools-guide for the full message). Do not substitute with web search or other sources.

When This Adds Value Over Grep/Read

Grep and Read show you what the code does now. This tool adds:

• Why it was built this way (PR discussions, design decisions)
• What was tried before (rejected approaches, prior incidents)
• What the team expects (conventions from team messages, docs, review comments)
• What's documented elsewhere (issue trackers, wiki pages, message threads)
• What happened (filtered activity — PRs merged, issues completed, message threads in a time range)
• What exists elsewhere (code in other repos, services, or systems not in the local workspace)

If your question is purely about current implementation and the code is local, Grep/Read is faster. If your question involves intent, history, conventions, activity across systems, or code outside the current repo, this tool surfaces context that isn't available locally.

Gotchas

• Keyword queries return noise — auth or rate limiting scatters results across too many entities. Write a full natural-language question with concrete identifiers: How does AuthService.validateToken() handle expired JWTs?
• Not mining identifiers from results before re-querying — the first result contains stronger nouns (file paths, class names, PR numbers) than the original request. Extract them before forming follow-up queries.
• Treating returned code as current local state — results reflect the default branch, not the local workspace. Always verify against local files before acting.
• Asking questions the code can answer directly — if you only need the current implementation (not history or reasoning), use Grep/Glob/Read instead. The tool's value is organizational context, not code search.
• Confusing "completed" date semantics — "completed" uses resolved date (issue trackers) or merged status (PRs), not created date. "Issues I completed last week" = resolved by me in that range.
• Using time filters for current status — "what am I working on" = status filter (open/InProgress), no time range. Time filters are for activity windows ("last week", "since Monday").
• Not using "me" for self-references — when the user says "I"/"my"/"me", include me in the query. Use actual names only for other people.

Input

Parameter	Required	Description
query	Yes	What to search for — the topic, entities, and any hard filters (date range, author, status). Write a complete phrase, not bare keywords.
effort	No	Search effort: low (default), medium, or high. Use low for targeted lookups anchored on one entity, URL, or file; medium for exploratory queries without a clear anchor; high for planning, architecture reviews, migrations, incident retros, and cross-system investigations.
include_content	No	String. If "true", return full content for each match. If omitted, return only title and URL.
instruction	No	Relevance criteria that shape which results surface and in what order, without changing what is searched. E.g., "Prefer architecture decision records over API reference docs".
max_results	No	String. Maximum number of documents to return. Defaults to the server's limit if omitted.

effort selection: low (default) for targeted lookups anchored on one entity, URL, or file. medium for exploratory queries without a clear anchor. high for planning, architecture, migrations, incident retros, and cross-system investigations — use whenever you're about to produce a plan or design.

include_content selection: Use "true" when you need to read the actual content inline. Omit it for initial discovery passes where titles and URLs suffice — you can always follow up with include_content: "true" or resolve individual URLs.

Write each query as a complete question or directive. Include the most concrete details you have:

• Service, module, class, or method names
• File paths or endpoints
• Project keys, channel names, repo names
• Date ranges, statuses, assignees
• Decision topics or feature names

The tool routes your query to the right retrieval strategy internally — you don't need to specify whether you want semantic search, a filtered lookup, or a research synthesis.

Splitting Queries

Split distinct unknowns into separate context_research calls rather than cramming everything into one query. Each call should have one objective. Run them in parallel when the unknowns are independent.

One query, two unknowns (diluted results):

Investigate the authentication flow and the rate limiting conventions in the API gateway.

Two parallel queries (focused results):

Query 1: How does AuthService.validateToken() verify JWTs and handle expiration?

Query 2: What conventions does the team follow for rate limiting middleware in the API gateway?

For complex investigations that span many entities, write a detailed 2-5 sentence directive rather than a short keyword fragment. Include the specific entities, systems, and questions you want answered.

Data Sources

The tool can retrieve structured records in addition to semantic search results.

Source	Lookup Types	Key Filters	Details
Issue trackers	Single issue, filtered lists, by epic/board/sprint/label	project, status, assignee/creator, date ranges, label	See references/issue-tracker-queries.md
Messaging	Channel summary/data, thread summary/data	channel name, date range, content criteria	See references/messaging-queries.md
PRs	Single PR, filtered lists	author, status, repository, time range, limit	See references/pr-and-code-queries.md

For structured queries, include specific details: project keys, channel names, repo names, date ranges, and statuses. Concrete details produce better results than vague requests.

When to Skip

• You only need current implementation, not history or reasoning, and the code is found locally via Grep/Glob/Read. If local search can't find the referenced entity, use this tool instead.
• You already know exactly which file and line to look at — direct file reads are faster.
• The question is about syntax or structure with no organizational context plausibly relevant.

Interpreting Results

• Returned source code reflects the default branch, not the current local workspace — verify against local files before acting.
• Mine concrete identifiers (file paths, class names, PR numbers, owner names, channel names) from results and use them in follow-up queries.
• Cross-reference key claims against at least one primary artifact (source file, config, authoritative doc) before driving decisions.
• Say explicitly when the tool returned thin or conflicting context so the user knows the confidence level.
• For messaging results, distinguish summary vs data content — if you got the wrong mode, re-query with the other.
• If important gaps remain, make one targeted follow-up query with the identifiers you mined from the first result.

Going Deeper with Source-Specific Tools

context_research casts a wide net across all sources. When results point toward a specific source type and you want more depth from that source alone, use the fine-grained tool for it — they search the same data but let you focus and filter without noise from other sources.

If results surface…	And you want more…	Use
Code snippets or implementations	Code from other repos, or semantic code search	context_search_code
PR descriptions or review discussions	More PR history, rejected approaches, change reasoning	context_search_prs
Issue reports or tickets	More issues, related bugs, in-progress work	context_search_issues
Wiki pages, runbooks, or design docs	More documentation across Confluence, Notion, Google Drive	context_search_documentation
Slack threads or team conversations	More messaging context, specific channels or time ranges	context_search_messages

When to escalate to a fine-grained tool:

• The broad results surfaced one strong signal in a specific source type and you want to pull more from it
• You want to filter or shape results within a source (e.g., only merged PRs, only open issues, only a specific channel)
• The initial results mixed sources in a way that's noisy — a focused tool returns cleaner, ranked results for that source

Run fine-grained follow-ups in parallel when you're chasing independent threads across multiple source types.

Reference

• references/query-patterns.md — general query-writing guidance and filter semantics
• references/issue-tracker-queries.md — issue tracker lookups and filter semantics
• references/messaging-queries.md — messaging channel and thread queries
• references/pr-and-code-queries.md — PR lookups, bug investigation, architecture, conventions, and research queries