This appeal invites us to explore, and in turn to demarcate, the outer boundaries of a promontory of federal judicial power. At the base of the appeal is a sexual harassment suit brought by Nydia G. Rodriguez Bruno (Rodriguez) against her former employer, Doral Mortgage Corporation (Doral).
1
Premising jurisdiction on the assertion of a federal civil rights violation,
see 28
U.S.C. §§ 1331, 1343(a)(4), the plaintiff pressed a claim under Title VTI of the Civil Rights Act of 1964, 42 U.S.C. §§ 2000e to 2000e-17 (1988), and hitched to it a pendent claim under a Puerto Rico statute known colloquially as Law 100.
2
After first holding that the
*1170
amendments embodied in the Civil Rights Act of 1991, Pub.L. No. 102-166, 105 Stat. 1071 (1991) (codified as amended at scattered sections of 42 U.S.C.), did not apply to this case in light of
Landgraf v. USI Film Prods.,
— U.S. -,
Three questions are now before us. (1) May a district court enter judgment for a plaintiff on a cause of action that was neither pleaded in the complaint nor raised during the course of trial? (2) May a district court prior to the close of trial unilaterally introduce an unpled cause of action into the proceedings? (3) In any event, may a district court, on remand, assume supplemental jurisdiction over a nonfederal cause of action that could have been introduced during trial, when (a) neither the plaintiff nor the district court in fact introduced the cause of action before the end of the trial, and (b) the foundational federal claim, though originally col-orable, has since been repulsed on the merits? Because we answer the first question in the negative, we must vacate the judgment below. 4 We turn then to choice of remedy, and, after answering both the second and third questions in the affirmative, we remand for farther proceedings.
I. FACTUAL AND PROCEDURAL HISTORY
We begin with the facts as supportably found by the district court after a bench trial. See Rodriguez Bruno v. Doral Mortgage Corp., No. 92-2497, slip op. at 1-9 (D.P.R. Sept. 19, 1994) (D.Ct.Op.). We then proceed to chart the procedural history of the litigation.
Doral hired Rodriguez in March of 1990 as a loan processor and transferred her the following January to its Hato Rey branch. There, she worked as a receptionist under the hegemony of Miguel Berrios. Over a period of several weeks, multiple incidents of sexual harassment occurred, including non-eonsensual physical contacts initiated by Berrios. Rodriguez reported the harassment to two of Doral’s top executives. These officials assured her that Berrios would be transferred, and, as it turned out, he resigned soon thereafter.
Despite Berrios’ departure, Rodriguez filed a complaint with the Puerto Rico Department of Labor in which she charged sexual harassment in consequence of an unlawfully hostile work environment. This grievance ultimately spawned the federal suit. The case was tried to the bench. The judge found the work environment to be “hostile” within the meaning of Title VII, but also found that Doral had neither actual nor constructive notice of the problem prior to Rodriguez’ internal complaints. He concluded, therefore, that Doral could not be held liable under Title VII. The judge also ruled that Berrios could not be held liable because Title VII, as it stood before the 1991 amendments, did not impose liability on individual harassers. See D.Ct.Op. at 14. So ended the plaintiff’s federal claims.
The court, however, did not consign the plaintiff to the ignominy of unmitigated defeat. Without passing in so many words on the Law 100 claim, the court departed from *1171 the pleadings on its own initiative and decided the suit in the plaintiffs favor by recourse to Law 17. Describing Law 17 as a “complementary statute regarding sexual harassment,” and interpreting it as “provid[ing] for strict liability where the alleged harasser is a supervisor,” id. at 15, the court held Doral liable to Rodriguez for $100,000 in damages, see id. at 19, and entered judgment accordingly. Doral now appeals.
II. THE UNPLEADED CLAIM
We begin our trek through the thicket of controversy by attempting to ascertain whether the lower court’s entry of judgment based on Law 17 can be justified from a procedural standpoint. Because the necessary inquiry focuses on the inclusion and exclusion of claims in a civil action in a federal district court, the Federal Rules of Civil Procedure govern.
See
Fed.R.Civ.P. 1;
see also
28 U.S.C. § 2072(b);
see generally
Charles A. Wright,
Law of Federal Courts
§ 62 (5th ed. 1994). The lower court’s action in respect to the Law 17 claim implicates no fewer than three of these rules, namely, Rule 8(a), Rule 15(b), and Rule 54(c). We conduct our examination mindful of two precepts: (1) that the Civil Rules cannot conjure up jurisdiction where none otherwise exists,
see
Fed. R.Civ.P. 82 (admonishing that the Civil Rules “shall not be construed to extend ... the jurisdiction of the United States district courts”); Wendy C. Perdue,
Finley v. United States: Unstringing Pendent Jurisdiction,
76 Va.L.Rev. 539, 563 n. 146 (1990) (addressing this limitation), and (2) that apart from the Civil Rules, “the district courts retain the inherent power to do what is necessary and proper to conduct judicial business in a satisfactory maimer,”
Aoude v. Mobil Oil Corp.,
A. Rule 8(a).
Fed.R.Civ.P. 8(a)(2) requires that a complaint contain, inter alia, “a short and plain statement of the claim showing that the pleader is entitled to relief....” The mandate of Rule 8(a)(2) comprises a threshold requirement. Despite the admonition that “[a]ll pleadings shall be so construed as to do substantial justice,” Fed.R.Civ.P. 8(f), failure to comply with Rule 8(a)(2) may render an unpleaded claim noncognizable when the plaintiff (or the court, for that matter) subsequently teases it out of adduced facts. It would not serve the interests of justice, for instance, to redeem a totally unpleaded, unli-tigated claim in circumstances that threaten significant prejudice to a defendant.
The bottom line is simply this: while courts should construe pleadings generously, paying more attention to substance than to form, they must always exhibit awareness of the defendant’s inalienable right to know in advance the nature of the cause of action being asserted against him.
See Beacon Theatres, Inc. v. Westover,
In the case at hand, the plaintiff wholly failed to plead a Law 17 claim. Her complaint did not delineate such a claim when filed; she did not add one by formal amendment; she did not mention the statute in her pretrial filings; and she did not explicitly refer to it at any point during the trial. In short, this is not a case in which a properly pleaded legal theory has been obscured by the parties’ concentration on other theories,
cf. Campana,
It is true, as the district court observed, that the pretrial order referred at one point to “strict liability,” the very property with which the district court imbued Law 17.
See
D.Ct.Op. at 15. Whatever the potential legal
*1172
significance of this fleeting mention, it is not sufficiently informative to satisfy the “short and plain statement” requirement of Rule 8(a)(2).
See, e.g., Campana,
We will not loiter. Though we fully appreciate that a complaint may be constructively amended as a case proceeds,
see, e.g., Toth v. USX Corp.,
At a bare minimum, even in this age of notice pleading, a defendant must be afforded both adequate notice of any claims asserted against him and a meaningful opportunity to mount a defense. The district court’s revisionist treatment of the case deprived Doral of these perquisites. Thus, unless the district court’s purported adjudication of the Law 17 claim can be salvaged on some other basis, it must be set aside.
B. Rule 15(b).
To this end, we next train the lens of inquiry on Fed.R.Civ.P. 15(b). That rule permits the consideration of unpleaded claims “by express or implied consent” of the parties. 5 Because the record here discloses no whisper of express consent — even the plaintiff concedes its absence — our inquiry narrows to the possibility of implied consent.
For purposes of Rule 15(b), implied consent to the litigation of an unpleaded claim may arise from one of two generic sets of circumstances. First, the claim may actually be introduced outside the complaint — say, by means of a sufficiently pointed interrogatory answer or in a pretrial memorandum — and then treated by the opposing party as having been pleaded, either through his effective engagement of the claim or through his silent acquiescence.
See, e.g., Action Mfg., Inc. v. Fairhaven Textile Corp.,
Here, no such constructive amendment occurred. The first avenue to implied consent is a dead end: the fleeting reference to “strict liability” contained in the pretrial order,
see supra
pp. 1171-72, cannot by any
*1173
stretch of even the most fertile imagination support such a finding.
See Grand Light & Supply Co. v. Honeywell, Inc.,
In fine, the absence of express or implied consent renders it impossible to fit the district court’s freelancing within the confines of Rule 15(b). Though we appreciate that the root purpose of the rule is to combat “the tyranny of formalism,”
Rosden v. Leuthold,
C. Rule 54(c).
The plaintiffs last justificatory basis for the district court’s action is Fed.R.Civ.P. 54(c). The rule, which we have explicated on earlier occasions,
see, e.g., Dopp v. HTP Corp.,
This thesis is hollow at its core. “Rule '54(c) creates no right to relief premised on issues not presented to, and litigated before, the trier.”
Dopp,
D. Recapitulation.
We summarize succinctly. In the absence of mutual consent, a district court may not enter judgment for a plaintiff on a cause of action that was neither pleaded in the complaint nor raised during the course of trial. Here, the district court’s resort to Law 17 contravenes this tenet. Moreover, the court’s maneuver cannot be justified under the Civil Rules. Specifically, the plaintiff did not plead a Law 17 claim within the purview of Rule 8(a); the nonexistence of consent (express or implied) negates any suggestion that the pleadings were constructively amended under Rule 15(b) to include such a claim; and Rule 54(c) does not overcome these deficiencies because its safety net cannot be stretched so widely as to grant a plaintiff relief on an unpleaded theory of which the defendant had no notice.
*1174
For these reasons, we hold that no claim under Law 17 was ever properly before the district court, and that the judgment cannot stand. A federal district court may not, of its own volition, after the parties have rested, recast the complaint and, without notice, predicate its decision on a theory that was neither pleaded nor tried.
See Greene v. Town of Blooming Grove,
III. THE NEXT STEP
Setting aside the judgment takes us only part of the way. We must now consider the next step. The defendant beseeches us to direct the entry of a take-nothing judgment. Because the plaintiff lost on the merits of each of her pleaded claims, we recognize that it is within our power to oblige. Before charting our course, however, we pause to mull whether remand is an available alternative, and, if so, whether that alternative is preferable.
Undoubtedly, a remand under the conditions that obtain here presents potential problems. For one thing, the propriety of the district court’s unilateral effort to insinuate an unpleaded claim into the case is open to question. For another thing, the foundational federal claims are now out of the picture — the plaintiff never cross-appealed from the adverse judgment on those claims, see supra note 4 — and the district court’s continued jurisdiction over a supplemental claim arising solely under Puerto Rico law may seem suspect. Third, the Law 17 claim itself, if free-standing, would now be time-barred. Finally, even if none of these factors absolutely precludes the discretionary exercise of remandatory jurisdiction, remand may not be the best available alternative. In the pages that follow, we address these concerns and then settle upon our next step.
A. The Court’s Power.
Since the question of whether a district court has the power to introduce an unplead-ed claim on its own initiative even up to (or beyond) the close of the trial and the question of whether a district court has the power to introduce such a claim on remand are closely related, we consider them in the ensemble.
1.
In General.
The proper functioning of our adversarial system of justice depends not only on the parties’ vigorous advocacy of their positions but also on the judge’s adroit supervision of the litigation. The sphere of case management extends to the definition of legal issues. To mention one of many possible illustrations, a district court possesses the authority to recommend to a plaintiff how she might reshape the complaint to escape dismissal.
See, e.g., Friedlander v. Nims,
We think it follows that a district court has the power to introduce a claim (or, rather, to prompt a party
to
introduce a claim) at any time during the course of litigation. This power does not vanish at the tail end of a trial, even though both sides have rested.
See, e.g., Campana,
As this discussion indicates (and as Fed. R.Civ.P. 15 and 28 U.S.C. § 1367 confirm, see infra), the court below could properly have called attention to the prospect of a new, unpleaded (but related) claim at any time as long as it adopted appropriate measures to safeguard against unfair prejudice.
2.
On Remand.
Of course, the posture of the case is now somewhat different. Doral argues that, on remand, the district court, even if it originally enjoyed the authority to introduce or entertain a new, unpleaded (but related) claim, would not still possess that power. We do not agree. Since a new, unpleaded (but related) claim could have been asserted during the trial, we see no reason to constrain a party from asserting such a claim on remand, or, correspondingly, to limit the district court’s discretion in terms of entertaining such a claim.
See Benitez-Allende,
B. Supplemental Jurisdiction.
Having traced the contours of the district court’s discretionary power to entertain a new, unpleaded (but related) claim, both at trial and on remand, and finding that the plaintiffs Law 17 claim fits into this eatego-ry, we must yet determine whether the court below can exercise supplemental jurisdiction over such a claim on remand even though the foundational federal claim is now ancient history. After carefully considering the conundrum, we conclude that the exercise of supplemental jurisdiction would be proper. 8
1. In General. The controlling statute, 28 U.S.C. § 1367(a), states in relevant part:
[I]n any civil action of which the district courts have original jurisdiction, the district courts shall have supplemental jurisdiction over all other claims that are so related to claims in the action within such original jurisdiction that they form part of the same case or controversy under Article III of the United States Constitution....
In enacting section 1367, Congress essentially codified the rationale articulated in
United Mine Workers v. Gibbs,
The relationship between the plaintiffs Title VII claim and her inchoate claim under Law 17 matches the
Gibbs
Court’s description in all significant respects. Both claims are civil rights claims; both derive from a reservoir of common facts; and, as a consequence, both would ordinarily be heard together in a single consolidated trial.
See, e.g.,
Andrea Catania,
State Employment Discrimination Remedies and Pendent Jurisdiction Under Title VII: Access to Federal Courts,
32 Am.U.L.Rev. 777, 793 (1983). Despite this apparent fit, appellant argues for an opposite result, contending that Congress, in enacting Title VII, forbade jurisdiction over supplemental claims by implication. Although there appears to be a smattering of authority in favor of this position,
see, e.g., Executive Software N. Am., Inc. v. United States Dist. Court for the Cent. Dist. of Cal.,
In our judgment, section 1367 itself disproves appellant’s hypothesis. Whatever may have been the situation before the enactment of the supplemental jurisdiction statute
10
— it may have been possible then to detect scattered signs of implied negation,
see Kitchen v. Chippewa Valley Sch.,
One additional point is worth making. While habit or practice is by no means the barometer of jurisdictional power, we find it telling that we have not heretofore encountered, let alone embraced, the radical hypothesis advanced by the appellant. To the precise contrary, we have regularly entertained suits in which plaintiffs have joined Title VII claims with pendent state-law claims — and we have done so both before and after the passage of section 1367.
See, e.g., Vera-Lozano,
To recapitulate, a sexual harassment claim brought pursuant to state law falls within the district court’s supplemental jurisdiction when, as now, the court’s original jurisdiction derives from the assertion of a Title VII claim arising out of the same facts. Thus, the court below plainly possessed the raw power to exercise supplemental jurisdiction over a claim under Puerto Rico Law 17, had one been asserted.
2. On Remand. Having determined that supplemental jurisdiction would have attached had a Law 17 claim been advanced ab initio, we must further deter *1177 mine whether such jurisdiction remains available on remand, given that the district court has by now slain the plaintiffs Title VII claim on the merits. Based on controlling law, we conclude that supplemental jurisdiction would be proper despite the interment of the plaintiffs foundational federal cause of action.
As a general principle, the unfavorable disposition of a plaintiffs federal claims at the early stages of a suit, well before the commencement of trial, will trigger the dismissal without prejudice of any supplemental state-law claims.
See, e.g., Gibbs,
To be sure, the exercise of supplemental jurisdiction in such circumstances is wholly discretionary. And, moreover, the district court, in reaching its discretionary determination on the jurisdictional question, will have to assess the totality of the attendant circumstances. Because each case is bound to have its own distinctive profile, we are reluctant to compose a list of important elements. Instead, we cite two examples to illustrate the wide variety of considerations that may appropriately enter into the calculus. The running of the statute of limitations on a pendent claim, precluding the filing of a separate suit in state court, is a salient factor to be evaluated when deciding whether to retain supplemental jurisdiction.
See, e.g., Wright v. Associated Ins. Cos.,
We will not attempt to single out all the elements that could potentially tip the balance here. That is grist for the district court’s mill. It suffices for our purposes to remark the obvious: that although the plaintiffs Title VII claim ultimately succumbed on the merits, it was colorable when brought. Consequently, the district court’s power to exercise discretionary supplemental jurisdiction over a putative Law 17 claim, extant at the time of trial, will remain intact on remand.
C. Charting a Course.
To this point, we have held (1) that, as a general proposition, supplemental jurisdiction over state-law claims is not precluded in Title VII actions; (2) that, in this case, had proper procedures been employed, the district court could appropriately have exercised supplemental jurisdiction over a claim brought pursuant to Puerto Rico Law 17; *1178 and (3) that the district court remains empowered, in its discretion, to entertain a Law 17 claim on remand. This means, of course, that remand ranks as a viable option from our standpoint.
We believe that remand is not only a viable option but also the best available course. In the first place, a hoary policy of the law favors the disposition of claims on the merits.
See, e.g., HMG Prop. Investors, Inc. v. Parque Indus. Rio Canas, Inc.,
The multifaceted decision about whether to permit the plaintiff to proffer a Law 17 claim and whether to exercise supplemental jurisdiction over it lies in the heartland of judicial discretion. Because the plaintiff neither pleaded nor otherwise seasonably advanced a Law 17 claim, the court may in its discretion simply deem the case concluded and enter a take-nothing judgment on the pleaded claims. In the alternative, the court may in its discretion choose to reopen the proceedings and invite the plaintiff to move, under Fed. R.Civ.P. 15(a), for leave to amend her complaint in order to assert a Law 17 claim. If that is done, the court (and the parties) will then face a series of judgment calls. For example, adjudicating the Rule 15 motion necessitates a further exercise of the court’s discretion.
11
See Coyne v. City of Somerville,
Given the critical role of discretion in the decisions that must be made, we think that the district court is better equipped to take the laboring oar and to determine whether the case should proceed (and if so, on what terms). As we have remarked before, “[t]he very nature of a trial judge’s interactive role assures an intimate familiarity with the nuances of ongoing litigation — a familiarity that appellate judges, handicapped by the sterility of an impassive record, cannot hope to match.”
Dopp v. Pritzker,
IV. CONCLUSION
We need go no further. The authority of the federal courts to entertain grievances is neither autopoetic nor illimitable; it must, in all instances, be traceable to and constrained by an antecedent constitutional or statutory grant.
See generally
U.S. Const, art. Ill, §§ 1-2;
Cary v. Curtis,
Nonetheless, the district court continues to possess the power to entertain a properly presented claim under Puerto Rico Law 17 even at this late date. Hence, we remit the ease for a more considered appraisal of this aspect of the matter. On remand, the trial court may simply bring the litigation to a close,
12
or it may elect, in its discretion, to allow the plaintiff the opportunity to present and to develop such a claim, subject to any constraints imposed by the jurisprudence of Fed.R.Civ.P. 15 and 28 U.S.C. § 1367. If the court pursues the latter route, it must concomitantly ensure that the parties are provided adequate discovery and “the standard prophylaxis that generally obtains at trial.”
Lussier v. Runyon,
Vacated and remanded. No costs.
Notes
. Technically, Rodriguez and her parents sued Doral and several associated individuals and entities, including Miguel Berrios, her immediate supervisor. Because none of these claims is relevant to this appeal, we treat the case as if it involved only a suit by Rodriguez (plaintiff-appel-lee) against Doral (defendant-appellant).
. In pertinent part, Law 100 forbids, on penalty of both civil and criminal sanctions, adverse employment actions based on any one of several protected characteristics, including sex. See P.RXaws Ann. tit. 29, § 146 (1985).
. In substance. Law 17 penalizes sexual harassment by employers or their agents. Under its terms as interpreted by the district court, employers are held strictly liable for damages arising out of harassment in the workplace (at least when perpetrated by a supervisor). The statutory language is inexplicit, however, and the Puer-to Rico Supreme Court has handed down only one opinion construing Law 17. See Delgado Zayas v. Hospital Interamericano de Medicina, 94 J.T.S. 149 (P.R.1994). That opinion does not speak to the question of strict liability, and we regard Law 17’s precise meaning as problematic.
. In actuality, the judgment below represents a split decision. While it encompasses the district court’s rulings in Doral’s favor on all the pleaded claims, Rodriguez has not challenged these rulings and they are unaffected by this appeal. All references herein to the judgment are, therefore, limited to the second portion of the judgment, which comprises the award of damages to the plaintiff under Law 17.
. The rule provides in pertinent part:
When issues not raised by the pleadings are tried by express or implied consent of the parties, they shall be treated in all respects as if they had been raised in the pleadings. Such amendment of the pleadings as may be neces-saiy to cause them to conform to the evidence and to raise these issues may be made upon motion of any party at any time, even after judgment; but failure so to amend does not affect the result of the trial of these issues....
Fed.RXiv.P. 15(b).
. We note that, even if we could detect some indicium of consent, access to the unguent of Rule 15(b) might well be blocked on another ground. One limit on the operation of Rule 15(b) is that the opposing party not be prejudiced.
See DCPB,
. The fact that the statute of limitations for the claim may have lapsed does not present an insurmountable obstacle. If the new claim arises out of the same nucleus of operative fact, it will ordinarily relate back to the date of the institution of the suit.
See
Fed.R.Civ.P. 15(c);
see also Benitez-Allende,
. "Supplemental jurisdiction” is the currently fashionable term, embraced by Congress in drafting 28 U.S.C. § 1367, that now blankets both "pendent jurisdiction" and its kissing cousin, "ancillary jurisdiction.” See Wright, supra, at §§ 9, 19 (discussing ancillary and pendent jurisdiction, respectively, and how those doctrines have been codified and modified by section 1367). Balancing the past and the present— melding the wisdom of tradition with the virtue of progress — we opt for a middle course and use the terms "supplemental jurisdiction" and “pendent jurisdiction” interchangeably.
. The references to "state” law or “state” claims in Gibbs and in the statute, see 28 U.S.C. § 1367(c) — (d), are not to be construed literally. Section 1367(e) expressly provides that "the term 'State’ includes ... the Commonwealth of Puerto Rico...."
. Even prior to the enactment of section 1367, the case for implied negation was asthenic.
See, e.g., Thompkins v. Stuttgart Sch. Dist. No. 22,
. We doubt that the district court, if it decides to cross this bridge, will have an easy time in passing upon a Rule 15(a) motion. Although the rule evinces a definite bias in favor of granting leave to amend,
see Jamieson v. Shaw,
. Should the district court opt, in its discretion, to follow this course and deny leave to amend, it may further choose to condition that order on the defendant's stipulation not to raise a statute-of-limitations defense if the plaintiff attempts to press a Law 17 claim in a Puerto Rico court.
See Edwards v. Okaloosa Cty.,
